Note: Descriptions are shown in the official language in which they were submitted.
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HETEROCYCLIC-SUBSTITUTED PIPERIDINE COMPOUNDS
AND THE USES THEREOF
This application claims the benefit of U.S. provisional application no.
60/880,955, filed
January 16, 2007, and U.S. provisional application no. 60/930,035, filed May
11, 2007, the
disclosure of each of which is incorporated by reference herein in its
entirety.
1. FIELD OF THE INVENTION
The invention relates to Heterocyclic-Substituted Piperidine Compounds,
compositions
comprising an effective amount of a Heterocyclic-Substituted Piperidine
Compound and
methods to treat or prevent a condition, such as pain, comprising
administering to an animal in
need thereof an effective amount of a Heterocyclic-Substituted Piperidine
Compound.
2. BACKGROUND OF THE INVENTION
Chronic pain is a major contributor to disability and is the cause of much
suffering.
The successful treatment of severe and chronic pain is a primary goal of the
physician, with
opioid analgesics being preferred drugs for doing so.
Until recently, there was evidence of three major classes of opioid receptors
in the
central nervous system (CNS), with each class having subtype receptors. These
receptor
classes are known as iLt, 6 and K. As opiates have a high affinity for these
receptors while not
being endogenous to the body, research followed in order to identify and
isolate the
endogenous ligands to these receptors. These ligands were identified as
enkephalins,
endorphins and dynorphins.
Recent experimentation has led to the identification of a cDNA encoding an
opioid
receptor-like (ORL-1) receptor with a high degree of homology to the known
receptor classes.
The ORL-1 receptor was classified as an opioid receptor based only on
structural grounds, as
the receptor did not exhibit pharmacological homology. It was initially
demonstrated that non-
selective ligands having a high affinity for p, 6 and K receptors had low
affinity for the ORL-1
receptor. This characteristic, along with the fact that an endogenous ligand
had not yet been
discovered, led to the term "orphan receptor".
Subsequent research led to the isolation and structure of the endogenous
ligand of the
ORL-1 receptor (i.e., nociceptin). This ligand is a seventeen amino acid
peptide structurally
similar to members of the opioid peptide family.
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The discovery of the ORL-1 receptor presents an opportunity in drug discovery
for
novel compounds that can be administered for pain management or other
syndromes
modulated by this receptor.
The publications "From Hit to Lead: Combining Two Complementary Methods" and
"From Hit to Lead: Analyzing Structure-Profile Relationships" of Poulain et
al. (J. Med.
Chenz. 44:3378-3390 and 3391-3401, respectively (2001)) describe carbamates
and carbamate
analogs for use as opioid receptor ligands.
International PCT Publication No. WO 95/03299 describes benzodiazepine
derivatives
for use as CCK or gastrin antagonists.
International PCT Publication No. WO 00/06545 Al describes piperidine
derivatives as
high affinity ligands for the nociceptin receptor ORL-1.
International PCT Publication No. WO 01/07050 Al describes substituted
piperidines
as nociceptin receptor ORL-1 agonists for use to treat cough.
International PCT Publication No. WO 01/34571 describes 13-amino acid
compounds
for use in inhibiting 13-amyloid peptide release.
International PCT Publication No. WO 02/080895 A2 describes farnesyl protein
transferase inhibitors comprising bicyclic groups for use in treating malaria.
U.S. published patent application No. US 2003/0134846 by Windsor etal.
describes
famesyl protein transferase inhibitors, some of which comprise bicyclic
groups, for use in
treating Topanosoma Brucei infection.
U.S. published patent application No. US 2003/0149027 by Oi et al. describes
benzodiazepine compounds for use in regulating somatostatin receptors.
U.S. published patent application No. US 2003/0207886 by Plucker et al.
describes
quinoxaline derivatives for use in protecting human epidermis or hair against
uv radiation.
U.S. published patent application No. US 2004/0082784 by Sielecki-Dzurdz et
al.
describes pyridino and pyrimidino pyrazinones for use as corticotropin
releasing factor
receptor antagonists to treat anxiety and depression.
U.S. published patent application No. US 2004/0220177 by Kath etal. describes
pyrimidine derivatives for use in treating abnormal cell growth in cancer.
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Japanese Application No. JP 08/291071 A2 and U.S. Patent No. 5,283,244 by
Sakamoto et al. each describe fused pyrazine derivatives for use,
respectively, as stable
injection solutions and glutamate antagonists.
U.S. Patent Nos. 5,739,129 and 5,859,007 by Aquino etal. describe
benzodiazepine
derivatives for use as CCK or gastrin modulators.
U.S. Patent Nos. 6,576,644 and 6,835,737 by Bi et al. describe aminoquinolines
for use
as inhibitors of cGMP phosphodiesterase.
U.S. Patent No. 7,001,901 by Yang describes tetrazolylpropionamides for use as
inhibitors of A13 protein production.
Citation of any reference in Section 2 of this application is not to be
construed as an
admission that such reference is prior art to the present application.
3. SUMMARY OF THE INVENTION
It is an object of the invention to provide new compounds that exhibit
affinity for the
ORL-1 receptor.
In certain embodiments of the invention, such new compounds exhibit agonist
activity
at the ORL-1 receptor.
In certain other embodiments of the invention, such new compounds exhibit
antagonist
activity at the ORL-1 receptor.
In certain embodiments of the invention, such new compounds exhibit affinity
for the
ORL-1 receptor, and also for one or more of the la, 6 or ic receptors. In a
particular
embodiment, a new compound of the invention exhibits affinity for both the ORL-
1 receptor
and the p. receptor. In a more specific embodiment, a new compound of the
invention acts as
an ORL-1 receptor antagonist and as a [1. receptor agonist.
Certain new compounds of the invention can be used to treat an animal
suffering from
chronic or acute pain.
It is a further object of the invention to provide methods of treating chronic
or acute
pain in an animal by administering one or more Heterocyclic-Substituted
Piperidine
Compounds of the invention to an animal in need of such treatment. In certain
embodiments,
such new Heterocyclic-Substituted Piperidine Compounds effectively treat
chronic or acute
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pain in the animal, while producing fewer or reduced side effects compared to
previously
available compounds.
The invention encompasses compounds of formula (I):
(R2)a
NY
A N B
R1
(I)
and pharmaceutically acceptable derivatives thereof wherein:
each R2 is independently selected from:
(a) -halo, -CN, -NO2, -0T3, -C(0)T3, -C(0)0T3, -C(0)N(T1)(T2), -S(0)3H,
-S(0)T3, -S(0)2T3, -S(0)2N(T1)(T2), -N(T1)(T2), -N(T3)C(0)T3, -
N(T3)C(0)N(T1)(T2),
-N(T3)S(0)2T3, or -N(T3)S(0)2N(T1)(T2); or
(b) -(C1-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -(Ci-C6)alkoxy, -(C3-
C7)cycloalkyl, -(C6-C14)bicycloalkyl, -(Cs-C26)tricycloalkyl, -(C5-
C0cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(Cs-C20)tricycloalkenyl, -(5- or 6-membered)heterocycle,
or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3
independently selected 128 groups; or
(c) -phenyl, -naphthalcnyl, -(Ci4)aryl, or -(5- or 6-membered)hcteroaryl, each
of
which is unsubstituted or substituted with 1, 2 or 3 independently selected R7
groups;
a is an integer selected from 0, 1 or 2;
R3 is selected from:
(a) -H; or
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(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(Ci-C6)alkyl, -0(C2-
C6)alkenyl, -0(C2-C6)alkynyl, -(C3-C7)cycloalkYl, -(C3-C7)cycloalkenyl, -(C3-
C7)cycloalkoxY,
-(C6-C 14)bicycloalkyl, -(C8-C20)tri cycloal kyl, -(C5-C io)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -
(C8-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3
independently selected Rg groups; or
(c) -phenyl, -naphthalcnyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl,
each
of which is unsubstituted or substituted with 1, 2 or 3 independently selected
R7 groups; or
(d) -(Ci-C6)alkyl(=0)Wi, -(CI-C6)alkyl(=NH)Wi, -C(0)0V1, -C(0)N(Vi)2,
-S(0)2N(V1)2, or -S(0)2(C1-C6)alkyl; or
(e) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-C7)cycloalkoxy, -(C6-
Ci4)bicycloalkyl, -
(Cg-C20)tricycloalkyl, -(C5-Ci0)cycloalkenyl, -(C7-C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl,
-(3- to 7-membered)heterocycle, -(7- to 10-membered)bicycloheterocycle, -
phenyl, -
naphthalenyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl; or
(I) -(C1-C3)alkyl substituted with a substituent selected from -N(R6)2,
-S(0)2N(V1)2, -N(R9)C(0)W1, -N(R9)S(0)2W1, and -C(0)N(Vi)2;
each W1 is independently selected from:
(a) -H, -(C1-C6)alkyl, -(C3-C7)cycloalkyl, -0(Ci-C6)alkyl, -(C3-
C7)cycloalkoxy,
-CH2CH2OH, -N(R6)2; or
(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(Ci-C6)alkyl;
each V1 is independently selected from -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -
phenyl,
or -benzyl;
each Y is independently selected from 0 or S;
A and B are independently selected from:
(a) -H, -CN, -C(0)0T3, -C(0)N(T)1(1.2), -(C3-C12)cycloalkyl, -(C3-
Ci2)cycloalkoxy, -(Ci-C6)alky1, -(C2-C6)alkenyl, -(C2-C6)alkynyl or -(CI-
C6)alkoxy, each of
which -(C3-C12)cycloalkyl, -(C3-C12)cycloalkoxy, -(C1-C6)alkYl, -(C2-
C6)alkenyl or -(C2-
C6)alkynyl is unsubstituted or substituted with 1 or 2 substituents
independently selected from
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-OH, -S(0)2NH2, -N(R6)2, =NR6, -C(0)0T3, -C(0)N(R6)2, -N(R6)C(0)R9 and -(5- or
6-
membered)heterocycle or 1, 2 or 3 independently selected -halo; or
(b) A-B together form a (C2-C6)bridge, which is unsubstituted or substituted
with 1, 2 or 3 independently selected R8 groups, and which bridge optionally
contains
-HC=CH- within the (C2-C6)bridge; wherein the piperazine ring that is fused to
the phenyl
group can be in the endo- or exo- conformation with respect to the A-B bridge;
or
(c) A-B together form a -CH2-N(Ra)-CH2- bridge, a
Rb Rb
C=--0 0=-S=--0
-CH2-N-CH2- bridge, or a -6H2-N-cH2- bridge;
wherein the piperazine ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge;
Ra is selected from -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -CH2-C(0)-R, -(CH2)-
C(0)-
Otte, -(CH2)-C(0)-N(Rc)2, -(CH2)2-0-R, -(CH2)2-S(0)2-N(R)2, Ptc, or -(C_H2)2-
N(R)S(0)2-L;
Rb is selected from:
(a) -H, -(CI-C6)alkyl, -(C3-C7)cycloalkyl, -(3- to 7-membered)heterocycle,
-N(R)2, -N(Re)-(C3-C7)cycloalkyl, or -N(Rc)-(3- to 7-membered)heterocycle; or
(b) -phenyl, -naphthalenyl, or-(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 independently selected R7 groups;
or
(c) -N(R)-phenyl, -N(Rc)-naphthalenyl, -N(Rc)-(C14)ary1, or -N(Rc)-(5- to 10-
membered)heteroaryl, each of which is unsubstituted or substituted with 1, 2
or 3
independently selected R7 groups;
each R. is independently selected from -H or -(C1-C4)alkyl;
C is selected from -H, -halo, -CN, -0T3, -C(0)0T3, -C(0)N(T)1(T2), -(C3-
C12)cycloalkyl, -(C3-C12)cycloalkoxy, -N(R6)2, -N(R6)C(0)R9, -NR6S02N(R6)2,
-N116-C(=NR6)N(R6)2, -(CI -C6)alkyl, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each
of which -(C1-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
substituents independently selected from -OH, -S(0)2NH2, -N(R6)2, =NR6, -
C(0)0T3,
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-C(0)N(R6)2, -N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from 1 to 3
independently
selected -halo;
the dashed line in the piperidine or bridged piperidine central ring denotes
the presence
or absence of a bond, and when the dashed line denotes the presence of a bond
then D is
absent, otherwise D is:
(a) -H, -CN, -C(0)0T3, or -C(0)N(T1)(T2); or
(b) -(CI-Cio)alkyl which is unsubstituted or substituted with 1, 2 or 3
independently selected R8 groups and, optionally, in which any D group carbon
atom except
the carbon atom bonded directly to the piperidine or bridged piperidine
central ring, is
independently replaced by 0 or S; or
(c) -phenyl, -naphthalenyl, or -(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 independently selected R7 groups;
Z is a bond;
R1 is selected from:
1 R11 R11
(R8)p ( )f ( = )k
)m , Or
---(R8)p ;
.//
R8)p (RE1)p
(i) (ii) (iii)
m is an integer selected from 0, 1, 2, 3, 4, 5, 6 or 7;
e and fare each an integer independently selected from 0, 1, 2, 3, 4 or 5
provided that 2
< (e 4- < 5;
j and k are each an integer independently selected from 0, 1, 2, 3 or 4
provided that 1 <
(j + k) < 4;
each Ti, Tz, and T1 is independently -H or -(C1-C10)alkyl which is
unsubstituted or
substituted with 1, 2 or 3 independently selected R8 groups and, optionally,
in which any
carbon atom is independently replaced by 0 or S, or T1 and T2 together can
form a 5- to 8-
membered ring where the number of atoms in the ring includes the nitrogen atom
to which Ti
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and T2 are bonded, said 5-to 8-membered ring is unsubstituted or substituted
with I, 2 or 3
independently selected R8 groups and, optionally, any carbon atom in said 5-
to 8-membered
ring is independently replaced by 0 or S;
each R6 is independently selected from -H, -(Ci-C6)alkyl, or -(C3-
C7)cycloalkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
each R7 is independently selected from -(Ci-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR9, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, -halo, -N3, -NO2, -CH=NR9,
-NR9OH, -
C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R8 is independently selected from -(CI-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR9, -C(halo)3, -CH(halo)2, -C112(halo), -CN, oxo, =S,-phenyl, -halo, -
N3, -NO2, -
CH=NR9, -NR9OH, -C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R9 is independently selected from -H, -(C1-C6)alkyl, -(C2-C6)alkenyl, -
(C2-
C6)alkynyl, -(C3-C8)cycloalkyl, -(C5-C8)cycloalkenyl, -phenyl, -benzyl, -(3-
to 7-
membered)heterocycle, -C(halo)3, -CH(halo)2, or -CH2(halo);
each p is an integer independently selected from or I;
R11 is selected from -H, -C(0)0R9, -C(0)N(R6)2, or -(Ci-C4)alkyl which is
unsubstituted or substituted with -OH, -(CI-C4)alkoxy, -N(R6)2, -C(0)0R9, or -
C(0)N(R6)2;
and
each halo is independently selected from -F, -Cl, -Br, or -I.
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The invention encompasses compounds of formula (11):
R3
(R2 a 1
4
N'Y
zI
RI
(II)
and pharmaceutically acceptable derivatives thereof wherein:
Q is selected from naphthaleno or pyridino;
5 each R2 is independently selected from:
(a) -halo, -CN, -NO2, -0T3, -C(0)T3, -C(0)0T3, -C(0)N(T1)(T2), -S(0)3H,
-S(0)T3, -S(0)2T3, -S(0)2N(T1)(T2), -N(T1)(T2), -N(T3)C(0)T3, -
N(T3)C(0)N(T1)(1-2),
-N(T3)S(0)2T3, or -N(T3)S(0)2N(T1)(T2); or
(b) -(C2-C6)alkenyl, -(C2-C6)alkynyl, -(CI-C6)alkoxy, -(C3-
C7)cycloalkyl, -(C6-Ci4)bicycloalkyl, -(Cs-C20)tricycloalkyl, -(Cs-
Cio)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(C8-C20)tricycloalkenyl, -(5- or 6-membered)heterocycle,
or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3
independently selected R8 groups; or
(c) -phenyl, -naphthalenyl, -(C14)aryl, or -(5- or 6-membered)heteroaryl, each
of
which is unsubstituted or substituted with 1, 2 or 3 independently selected R7
groups;
a is an integer selected from 0, 1 or 2;
R3 is selected from:
(a) -H; or
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(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, (C2-C6)alkynyl, -0(Ci-C6)alkyl, -0(C2-
C6)alkenyl, -0(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-
C7)cycloalkoxY,
-(C6-Ci4)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-C10)cycloalkenyl, -(C7-
Ci4)bicycloalkenyl, -
(C8-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with I, 2 or 3
independently selected R8 groups; or
(c) -phenyl, -naphthalenyl, -(Ci4)aryl, or -(5- to 10-membered)heteroaryl,
each
of which is unsubstituted or substituted with 1, 2 or 3 independently selected
R7 groups; or
(d) -(Ci-C6)alkyl(=0)Wi, -(Ci-C6)alkyl(=NH)Wi, -C(0)0V1, -C(0)N(V1)2,
-S(0)2N(V1)2, or -S(0)2(C1-C6)alkyl; or
(e) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-C7)cycloalkoxy, -(C6-
C14)bicycloalkyl, -
(C8-C20)tricycloalkyl, -(C5-C io)cycloalkenyl, -(C7-C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl,
-(3- to 7-membered)heterocycle, -(7- to 10-membered)bicycloheterocycle, -
phenyl, -
naphthalenyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl; or
(0 -(C1-C3)alkyl substituted with a substituent selected from -N(R6)2,
-S(0)2N(V1)2, -N(R9)C(0)W1, -N(R9)S(0)2W1, and -C(0)N(V1)2;
each Y is independently selected from 0 or S;
A and B are independently selected from:
(a) -H, -CN, -C(0)0T3, -C(0)N(T)1(T2), -(C3-C12)cycloalkyl, -(C3-
C12)cycloalkoxy, -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl or -(C1-
C6)alkoxy, each of
which -(C3-C12)cycloalkyl, -(C3-C12)cycloalkoxy, -(Ci-C6)alkyl, -(C2-
C6)alkenyl or -(C2-
C6)alkynyl is unsubstituted or substituted with 1 or 2 substituents
independently selected from
-OH, -S(0)2NH2, -N(R6)2, =NR6, -C(0)0T3, -C(0)N(R6)2, -N(R6)C(0)R9 and -(5- or
6-
membered)heterocycle or 1, 2 or 3 independently selected -halo; or
(b) A-B together form a (C2-C6)bridge, which is unsubstituted or substituted
with 1, 2 or 3 independently selected R8 groups, and which bridge optionally
contains
-HC=CH- within the (C2-C6)bridge; wherein the piperazine ring that is fused to
the Q group
can be in the endo- or exo- conformation with respect to the A-B bridge; or
(c) A-B together form a -CH2-N(R.)-CH2- bridge, a
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Rb Rb
C=0 0=S=0
-CH2-N-CH2- bridge, or a bridge;
wherein the piperazine ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge;
Ra is selected from -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -CH2-C(0)-11c, -
(CH2)-C(0)-
011c, -(CH2)-C(0)-N(Rc)2, -(CH2)2-0-R, -(CH2)2-S(0)2-N(R)2, Rc, or -(CH2)2-
N(R)S(0)2-R,;
Rb is selected from:
(a) -H, -(C1-C6)alkyl, -(C3-C7)cycloalkyl, -(3- to 7-membered)heterocycle,
-N(R)2, -N(Re)-(C3-C7)cycloa1kyl, or -N(Rc)-(3- to 7-membered)heterocycle; or
(b) -phenyl, -naphthalenyl, or-(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 independently selected R7 groups;
or
(c) -N(R)-phenyl, -N(R,)-naphthalenyl, -N(Rc)-(C14)aryl, or -N(Rc)-(5- to 10-
membered)heteroaryl, each of which is unsubstituted or substituted with 1, 2
or 3
independently selected R7 groups;
each Itc is independently selected from -H or -(Ci-C4)alkyl;
C is selected from -H, -halo, -CN, -0T3, -C(0)0T3, -C(0)N(T)1(T2), -(C3-
Ci2)cycloalkyl, -(C3-C12)cycloalkoxy, -N(R6)2, -N(R6)C(0)R9, -NR6S02N(R6)2,
-NR6-C(=NR6)N(R6)2, -(C1-C6)alkyl, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each
of which -(C1-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
substituents independently selected from -OH, -S(0)2NH2, -N(R6)2, =NR6, -
C(0)0T3,
-C(0)N(R6)2, -N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from 1 to 3
independently
selected -halo;
the dashed line in the piperidine or bridged piperidine central ring denotes
the presence
or absence of a bond, and when the dashed line denotes the presence of a bond
then D is
absent, otherwise D is:
(a) -H, -CN, -C(0)01'1, or -C(0)N(T1)(T2); or
(b) -(Ci-Cio)alkyl which is unsubstituted or substituted with 1, 2 or 3
independently selected R8 groups and, optionally, in which any D group carbon
atom except
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the carbon atom bonded directly to the piperidine or bridged piperidine
central ring is
independently replaced by 0 or S; or
(c) -phenyl, -naphthalenyl, or -(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 independently selected R7 groups;
Z is -[(CI-Cio)alkyl optionally substituted by Rdh-, where his 0 or I; or ¨(Ci-
C10)alkyl-
NR6C(=Y)-;
R1 is selected from:
(a) -H, -halo, -CN, -OH, -CH2OH, -CH2CH2OH, -NO2, -N(R6)2, -S(0)NH2, -
S(0)2NH2, -C(0)0V1, or -C(0)CN; or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(Ci-C6)alkyl, -(C3-
C7)cycloalkoxy, -(C6-C 14)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-C
0)cycloalkenyl, -(C2-
Ci4)bicycloalkenyl, -(Cs-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, -
(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with an R8 group,
or
R11
<.\\: >Z11 R11
(R8)p 1$1
)rn , * , or
¨(Rs)p ;
(Ra)p (R8)p
(i) (ii) (iii) or
(c) -phenyl, -naphthalenyl, -(Cm)aryl, or -(5- to 10-membered)heteroaryl, each
of which is unsubstituted or substituted with an R7 group; or
-Z-R1 is 3,3-diphenylpropyl- optionally substituted at the 3 carbon of the
propyl with -
CN, -C(0)N(R6)2, -C(0)0V1, or -tetrazolyl; or
-Z-R1 is -(C1-C4)alkyl substituted with tetrazolyl;
each R6 is independently selected from -H, -(Ci-C6)alkyl, or -(C3-
C7)cycloalkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
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atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
each R7 is independently selected from -(Ci-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR,, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, -halo, -1\11, -NO2, -
CH=NR,, -NR,OH, -
C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R8 is independently selected from -(Ci-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR,, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, oxo, =S,-phenyl, -halo, -
N3, -NO2, -
CH=NR9, -NR9OH, -C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R9 is independently selected from -H, -(Ci-C6)alkyl, -(C2-C6)alkenyl, -
(C2-
C6)alkynyl, -(C3-C8)cycloalkyl, -(C5-C8)cycloalkenyl, -phenyl, -benzyl, -(3-
to 7-
membered)heterocycle, -C(halo)3, -CH(halo)2, or -CH2(halo);
if h is 0, Rii is selected from -H, -C(0)0R9, -C(0)N(R6)2, or -(Ci-C4)alkyl
which is
unsubstituted or substituted with -OH, -(Ci-C4)alkoxy, -N(R6)2, -C(0)0R9, or -
C(0)N(R6)2;
if h is 1, R11 is selected from -H, -OH, -halo, -C(0)0R9, -C(0)N(R6)2, or -(Ci-
C4)alkyl
which is unsubstituted or substituted with -OH, -(Ci-C4)alkoxy, -N(R6)2, -
C(0)0R9, or
-C(0)N(R6)2;
m is an integer selected from 0, 1, 2, 3, 4, 5, 6 or 7;
e and fare each an integer independently selected from 0, 1, 2, 3, 4 or 5
provided that 2
< (e < 5;
j and k are each an integer independently selected from 0, 1, 2, 3 or 4
provided that 1 <
(j +k)< 4;
each p is an integer independently selected from or 1;
each T1, Tz, and T3 is independently -H or -(Ci-C10)alkyl which is
unsubstituted or
substituted with 1, 2 or 3 independently selected R8 groups and, optionally,
in which any
carbon atom is independently replaced by 0 or S, or Ti and T2 together can
form a 5- to 8-
membered ring where the number of atoms in the ring includes the nitrogen atom
to which Ti
and T2 are bonded, said 5- to 8-membered ring is unsubstituted or substituted
with 1, 2 or 3
independently selected R8 groups and, optionally, any carbon atom in said 5-
to 8-membered
ring is independently replaced by 0 or S;
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each V1 is independently selected from -H, -(Ci-C6)alkyl, -(C3-C7)cycloalky1, -
phenyl,
or -benzyl;
each W1 is independently selected from:
(a) -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -0(CI-C6)alkyl, -(C3-
C7)cycloalkoxy,
-CH2CH2OH, -N(R6)2; or
(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(Ci-C6)alkyl; and
each halo is independently selected from -F, -Cl, -Br, or -1;
provided that when h is 0, then R1 is not -halo or -NO2;
provided that when Q is pyridino, then R2 is not imidazolyl or triazolyl;
provided that when Q is pyridino and R2 is -phenyl, -naphthalenyl, or -(5- or
6-
membered)heteroaryl, then the R2 group is not attached to a pyridino atom
bonded to a 5- or 6-
position carbon atom; and
provided that R3 does not include an imidazolyl group.
The invention encompasses compounds of formula (III):
R3 y
(R2)a
C W-4
A N B
RI
(III)
and pharmaceutically acceptable derivatives thereof wherein:
Q is selected from benzo, naphthaleno, (Cia)arYI, (C3-C12)cycloalkyl, (C6-
C14)bicycloalkyl, (Cs-Cio)cycloalkenyl, (C7-C14)bicycloalkenyl, (3- to 7-
membered)heterocycle, or (5- to 10-membered)heteroaryl;
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each R2 is independently selected from:
(a) -halo, -CN, -NO2, -0T3, -C(0)T3, -C(0)0T3, -C(0)N(T1)(T2), -S(0)3H,
-S(0)T3, -S(0)2T3, -S(0)2N(T1)(T2), -N(T1)(T2), -N(T3)C(0)T3, -
N(T)C(0)N(T1)(T2),
-N(T3)S(0)2T3, or -N(T3)S(0)2N(T1)(T2); or
(b) -(C2-C6)alkenyl, -(C2-C6)alkYllY1, -(C1-C6)alkoxy, -(C3-
C7)cycloalkyl, -(C6-C14)bicycloalkyl, -(Cs-C20)tricycloalkyl, -(C5-
C10)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(Cs-C20)tricycloalkenyl, -(5- or 6-membered)heterocycle,
or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3
independently selected R8 groups; or
(c) -phenyl, -naphthalenyl, -(C14)aryl, or -(5- or 6-membered)heteroaryl, each
of
which is unsubstituted or substituted with 1, 2 or 3 independently selected R7
groups;
a is an integer selected from 0, 1 or 2;
R3 is selected from:
(a) -H; or
(b) -(CI-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(Ci-C6)alkyl, -0(C2-
C6)alkenyl, -0(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-
C7)cycloalkoxy,
-(C6-C14)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-C10)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -
(C8-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3
independently selected R8 groups; or
(c) -phenyl, -naphthalenyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl,
each
of which is unsubstituted or substituted with 1, 2 or 3 independently selected
R7 groups; or
(d) -(Ci-C6)alkyl(=0)W , -(CI-C6)alkyl(=NH)Wi, -C(0)0V1, -C(0)N(Vi)2,
-S(0)2N(V1)2, or -S(0)2(Ci-C6)alkyl; or
(e) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-C7)cycloalkoxy, -(C6-
C14)bicycloalkyl, -
(Cs-C20)tricycloalkyl, -(C5-C lo)cycloalkenyl, -(C7-C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl,
-(3- to 7-membered)heterocycle, -(7- to 10-membered)bicycloheterocycle, -
phenyl, -
naphthalenyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl; or
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(0 -(CI-C3)alkyl substituted with a substituent selected from -N(R6)2,
-S(0)2N(V1)2, -N(R9)C(0)W1, -N(R9)S(0)2W1, and -C(0)N(Vi)2;
each Y is independently selected from 0 or S;
X is -C(R4)(R5)-, -N(R13)-, -C(R4)(R5)-C(R4)(R5')-, -C(R4)=C(R4I)-, -C(R4)(R5)-
N(R13)-
, or -N(R13)-C(R4)(R5)-;
each R4 and R4' is independently selected from -H, -0R6, -(Ci-C6)alkyl, or -
(C3-
C7)cycloalkyl; or, independently, any two of R4 and R5, or R4' and R5',
together can form an
oxo group; or any two of R4 and R4' can form a 4-to 8-membered cycloalkyl
ring, the number
of atoms in the ring including the atoms to which the two of R4 and R4' are
attached and any
intervening atoms, if present;
each R5 and R5' is independently selected from -H, -(Ci-C6)alkyl, or -(C3-
C7)cycloalkyl;
R13 is selected from:
(a) -H; or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C3-
C7)cycloalkoxy, -(C6-C14)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-
Cio)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(C8-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle,
or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3
independently selected R8 groups; or
(c) -phenyl, -naphthalenyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl,
each
of which is unsubstituted or substituted with 1, 2 or 3 independently selected
R7 groups; or
(d) -C(0)0(C3-C8)cycloalkyl, -CH2CH201-1, -(Ci-C6)alkyl(=0)W2, or -(Ci-
C6)alkyl-W2; or
(e) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -N(R6)2; -C(0)0R9; -C(0)N(R9)2; -0C(0)(C3-C8)cycloalkyl; -NHS(0)2(C3-
Cs)cycloalky1; -NHC(0)W2; -NHS(0)2W2; -(C3-Ci2)cycloalkyl, -(C3-
C7)cycloalkenyl, -(C3-
C7)cycloalkoxy, -(C6-C14)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-
Cio)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(C8-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle
or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or further
substituted with 1, 2
or 3 independently selected R8 groups; or -phenyl, -naphthalenyl, -(C14)aryl
or -(5- to 10-
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membered)heteroaryl, each of which is unsubstituted or further substituted
with 1, 2 or 3
independently selected R8 groups;
each W2 is independently selected from -(C3-C7)cycloalkyl, -0(Ci-C6)alkyl, -
(C3-
C7)cycloalkoxy, (3- to 7-membered)heterocycle, -CH2CH2OH, and -N(R6)2;
A and B are independently selected from:
(a) -H, -CN, -C(0)0T3, -C(0)N(T)1(T2), -(C3-Ci2)cycloalkyl, -(C3-
C12)cycloalkoxy, -(CI-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl or -(Ci-
C6)alkoxy, each of
which -(C3-Ci2)cycloalkyl, -(C3-Ci2)cycloalkoxy, -(C2-C6)alkenyl or -(C2-
C6)alkynyl is unsubstituted or substituted with 1 or 2 substituents
independently selected from
-OH, -S(0)2NH2, -N(R6)2, =NR6, -C(0)0T3, -C(0)N(R6)2, -N(R6)C(0)129 and -(5-
or 6-
membered)heterocycle or 1, 2 or 3 independently selected -halo; or
(b) A-B together form a (C2-C6)bridge, which is unsubstituted or substituted
with 1, 2 or 3 independently selected R8 groups, and which bridge optionally
contains
-HC=CH- within the (C2-C6)bridge; wherein the heterocyclic ring that is fused
to the Q group
can be in the endo- or exo- conformation with respect to the A-B bridge; or
(c) A-B together form a -CH2-N(Ra)-CH2- bridge, a
Rb Rb
C=-0
-CH2-N-CH2- bridge, or a -CH2-N-CH2- bridge;
wherein the heterocyclic ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge;
Ra is selected from -H, -(CI-C6)alkyl, -(C3-C7)cycloalkyl, -CH2-C(0)-R, -(CH2)-
C(0)-
0Re, -(CH2)-C(0)-N(Rc)2, -(CH2)2-0-R., -(CH2)2-S(0)2-N002, R., or -(CH2)2-
N(12.)S(0)2-R.;
Rb is selected from:
(a) -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -(3- to 7-membered)heterocycle,
-N(R)2, -N(R.)-(C3-C7)cycloa1kyl, or -N(R.)-(3- to 7-membered)heterocycle; or
(b) -phenyl, -naphthalenyl, or-(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 independently selected R7 groups;
or
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(c) -N(R)-phenyl, -N(K)-naphthalenyl, -N(Rc)-(C14)aryl, or -N(Rc)-(5- to 10-
membered)heteroaryl, each of which is unsubstituted or substituted with 1, 2
or 3
independently selected R7 groups;
each Rc is independently selected from -H or -(Ci-C4)alkyl;
C is selected from -H, -halo, -CN, -0T1, -C(0)0T3, -C(0)N(T)1(T2), -(C3-
Ci2)cycloalkyl, -(C3-C12)cycloalkoxy, -N(R6)2, -N(R)C(0)R9, -NR6S02N(R)2,
-NR6-C(=NR6)N(R6)2, -(Ci-C6)alkyl, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each
of which -(Ci-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
substituents independently selected from -OH, -S(0)2NH2, -N(R6)2, =NR, -
C(0)0T3,
-C(0)N(R6)2, -N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from 1 to 3
independently
selected -halo;
the dashed line in the piperidine or bridged piperidine central ring denotes
the presence
or absence of a bond, and when the dashed line denotes the presence of a bond
then D is
absent, otherwise D is:
(a) -H, -CN, -C(0)0T3, or -C(0)N(Ti)(T2); or
(b) -(Ci-Cio)alkyl which is unsubstituted or substituted with 1, 2 or 3
independently selected R8 groups and, optionally, in which any D group carbon
atom except
the carbon atom bonded directly to the piperidine or bridged piperidine
central ring, is
independently replaced by 0 or S; or
(c) -phenyl, -naphthalenyl, or -(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 independently selected R7 groups;
Z is -[(CI-Cio)alkyl optionally substituted by Ri]h-, where h is 0 or 1; or -
(Ci-C10)alkyl-
NR6C(-Y)-;
R1 is selected from:
(a) -H, -halo, -CN, -OH, -CH2OH, -CH2CH2OH, -NO2, -N(R6)2, -S(0)NH2, -
S(0)2NH2, -C(0)0V1, or -C(0)CN;
(b) -(Ci-Co)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(Ci-C6)alkyl, -(C3-
C7)cycloalkoxy, -(Co-C 14)bicycloalkyl, -(Cs-C20)tricycloalkyl, -(C5-
C1o)cycloalkenyl, -(C7-
CH)bicycloalkenyl, -(Cs-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, -
(7- to 10-
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membered)bicycloheterocycle, each of which is unsubstituted or substituted
with an R8 group,
or
R11
(R8)p ( el )1 )1(
S.)rn , ,or
ss -(Re)
P
(R8V- (R8)p
(i) Or
(c) -phenyl, -naphthalenyl, -(Cia)aryl, or -(5- to 10-membered)heteroaryl,
each
of which is unsubstituted or substituted with an R7 group; or
-Z-R1 is 3,3-diphenylpropyl- optionally substituted at the 3 carbon of the
propyl with -
CN, -C(0)N(R6)2, -C(0)0V1, or -tetrazolyl; or
-Z-R1 is -(CI-C4)alkyl substituted with tetrazolyl;
each R6 is independently selected from -H, -(C1-C6)alkyl, or -(C3-
C2)cycloalkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
each R7 is independently selected from -(C1-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR,, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, -halo, -N3, -NO2, -CH=NR9,
-NR,OH, -
C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R8 is independently selected from -(Ci-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR9, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, oxo, =S,-phenyl, -halo, -
N3, -NO2, -
CH=NR9, -NR9OH, -C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each Rs, is independently selected from -H, -(C1-C6)alkyl, -(C2-C6)alkenyl, -
(C2-
C6)alkynyl, -(C1-C8)cycloalkyl, -(C5-00cycloalkenyl, -phenyl, -benzyl, -(3- to
7-
mcmbcred)heterocycle, -C(halo)3, -CH(halo)2, or -CH2(halo);
if h is 0, R11 is selected from -H, -C(0)0R9, -C(0)N(R6)2, or -(C1-C4)alkyl
which is
unsubstituted or substituted with -OH, -(C1-C4)alkoxy, -N(R6)2, -C(0)0R9, or -
C(0)N(R6)2;
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if h is 1, R11 is selected from ¨H, -OH, -halo, -C(0)0R9, -C(0)N(R6)2, or -(Ci-
C4)alkyl
which is unsubstituted or substituted with -OH, -(Ci-C4)alkoxy, -N(R6)2, -
C(0)0R9, or
-C(0)N(R6)2;
m is an integer selected from 0, 1, 2, 3,4, 5, 6 or 7;
c and fare each an integer independently selected from 0, 1, 2, 3, 4 or 5
provided that 2
< < 5;
j and k are each an integer independently selected from 0, 1, 2, 3 or 4
provided that 1 <
(j + k) < 4;
each p is an integer independently selected from0 or 1;
each T1, T2, and T3 is independently -H or -(Ci-Cio)alkyl which is
unsubstituted or
substituted with 1, 2 or 3 independently selected R8 groups and, optionally,
in which any
carbon atom is independently replaced by 0 or S, or Ti and 12 together can
form a 5- to 8-
membered ring where the number of atoms in the ring includes the nitrogen atom
to which T1
and T2 are bonded, said 5- to 8-membered ring is unsubstituted or substituted
with 1, 2 or 3
independently selected Rs groups and, optionally, any carbon atom in said 5-
to 8-membered
ring is independently replaced by 0 or S;
each Vi is independently selected from -H, -(C1-C6)alkyl, -(C3-C7)cycloalkyl, -
phenyl,
or -bcnzyl;
each W1 is independently selected from:
(a) -H, -(C i-C6)alkyl, -(C3-C7)cycloalkyl, -0(C -C6)alkyl, -(C3-
C7)cycloalkoxy,
-CH2CH2OH, -N(R6)2; or
(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(Ci-C6)alkyl; and
each halo is independently selected from -F, -Cl, -Br, or -I;
provided that when h is 0, then RI is not -halo or -NO2;
provided that when Q is benzo, then X is not -N(R13)-;
provided that when Q is benzo, then R3 is not -(C1-C2)alkyl substituted with
-C(0)N(VJ)2; and
provided that R3 does not include an imidazolyl group.
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The invention encompasses compounds of formula (1V):
R3 y
(R2L
N'...4:112
7C-IC
A N B
Ri
(IV)
and pharmaceutically acceptable derivatives thereof wherein:
each R2 is independently selected from:
(a) -halo, -CN, -NO2, -0T3, -C(0)T3, -C(0)0T3, -C(0)N(T1)(T2), -S(0)3H,
-S(0)T3, -S(0)2T3, -S(0)2N(TI)(T2), -N(T1)(1.2), -N(T3)C(0)T3, -
N(T3)C(0)N(T1)(T2),
-N(T3)S(0)2T1, or -N(T3)S(0)2N(T1)(T2); or
(b) -(C1-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -(Ci-C6)alkoxy, -(C3-
C7)cycloalkYl, -(C6-C14)bicycloalkyl, -(C8-C20)tricycloallcyl, -(C5-
C10)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(Cs-C20)tricycloalkenyl, -(5- or 6-membered)heterocycle,
or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3
independently selected R8 groups; or
(c) -phenyl, -naphthalenyl, -(C14)aryl, or -(5- or 6-membered)heteroaryl, each
of
which is unsubstituted or substituted with 1, 2 or 3 independently selected R7
groups;
a is an integer selected from 0, 1 or 2;
R3 is selected from:
(a) -H; or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(CI-C6)alkyl, -0(C2-
C6)alkenyl, -0(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-
C7)cycloalkoxY,
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-(C6-C14)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-Cio)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -
(C8-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3
independently selected R8 groups; or
(c) -phenyl, -naphthalenyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl,
each
of which is unsubstituted or substituted with 1, 2 or 3 independently selected
R7 groups; or
(d) -(Ci-C6)alkyl(=0)W1, -(Ci-C6)alkyl(=NH)Wi, -C(0)0V1, -C(0)N(V1)2,
-S(0)2N(V02, or -S(0)2(Ci-C6)alkyl; or
(e) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-C7)cycloalkoxy, -(C6-
Ci4)bicycloalkyl, -
(C8-C20)tricycloalkyl, -(C5-Cio)cycloalkenyl, -(C7-C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl,
-(3- to 7-membered)heterocycle, -(7- to 10-membered)bicycloheterocycle, -
phenyl, -
naphthalenyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl; or
(0 -(Ci-C3)alkyl substituted with a substituent selected from -N(R6)2,
-S(0)2N(V1)2, -N(R9)C(0)W1, -N(R9)S(0)2W1, and -C(0)N(Vi)2;
each Y is independently selected from 0 or S;
R12 is selected from:
(a) -(C3-C12)cycloalkyl, -(C3-Ci2)cycloalkoxy, -(C6-C14)bicyeloalkyl, -(C8-
C20)tricycloalkyl, -(Cs-Clo)cycloalkenyl, -(C7-C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl, -(3-
to 7-membered)heterocycle, each of which is unsubstituted or substituted with
1, 2 or 3
independently selected R5 groups; or
(b) -(Cia)aryl which is unsubstituted or substituted with 1, 2 or 3
independently
selected R7 groups; or
(c) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -C(0)0R9, -C(0)N(R9)2, -(C3-C12)cycloalkyl which is unsubstituted or
further substituted
with 1, 2 or 3 independently selected R8 groups, -(C3-Ci2)cycloalkoxy which is
unsubstituted
or further substituted with 1, 2 or 3 independently selected R8 groups, -(3-
to 7-
membered)heterocycle which is unsubstituted or further substituted with 1, 2
or 3
independently selected R8 groups, or -(C14)aryl which is unsubstituted or
further substituted
with 1, 2 or 3 independently selected R7 groups; or
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(d) -C(0)0(C3-C8)cycloalkyl, -CH2CH2OH, -C(0)N(Vi)(C3-C8)cycloalkyl,
-(CI-C6)alkyl(=0)W2, or -(Ci-C6)alkyl-W2; or
(c) -(C1-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -0C(0)(C3-C8)cycloalkyl, -NHS(0)2(C3-C8)cycloalkyl, -N(Vi)C(0)(C3-
C8)cycloalkyl, -
NHC(0)W2, and -NHS(0)2W2;
each W2 is independently selected from -(C3-C7)cycloalkyl, -0(Ci-C6)alkyl, -
(C3-
C7)cycloalkoxy, (3- to 7-membered)heterocycle, -CH2CH2OH, and -N(R6)2;
A and B are independently selected from:
(a) -H, -CN, -C(0)0T3, -C(0)N(T)1(1.2), -(C3-C12)cycloalkyl, -(C3-
C12)cycloalkoxy, -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl or -(Ci-
C6)alkoxy, each of
which -(C3-Ci2)cycloalkyl, -(C3-Ci2)cycloalkoxy, -(C1-C6)alkyl, -(C2-
C6)alkenyl or -(C2-
C6)alkynyl is unsubstituted or substituted with 1 or 2 substituents
independently selected from
-OH, -S(0)2NH2, -N(R6)2, =NR, -C(0)0T3, -C(0)N(R6)2, -N(R6)C(0)R9 and -(5- or
6-
membered)heterocycle or 1, 2 or 3 independently selected -halo; or
(b) A-B together form a (C2-C6)bridge, which is unsubstituted or substituted
with 1, 2 or 3 independently selected R8 groups, and which bridge optionally
contains
-HC=CH- within the (C2-C6)bridge; wherein the heterocyclic ring that is fused
to the phenyl
group can be in the endo- or exo- conformation with respect to the A-B bridge;
or
(c) A-B together form a -CH2-N(Ra)-CH2- bridge, a
Rb Rb
C= 0 0 S=0
-
C H2 -N-CH2- bridge, or a -cH2-N_cH2- bridge;
wherein the heterocyclic ring that is fused to the phenyl group can be in the
endo- or
exo- conformation with respect to the A-B bridge;
R. is selected from -H, -(C1-C6)alkyl, -(C3-C7)cycloalkyl, -CH2-C(0)-R, -(CH2)-
C(0)-
OR,, -(CH2)-C(0)-N(R)2, -(012)2-0-Rc, -(CH2)2-S(0)2-N(Rc)2, Rc, or -(CH2)2-
N(R)S(0)2-Re;
Rb is selected from:
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(a) -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -(3- to 7-membered)heterocycle,
-N(11)2, -N(11)-(C3-C2)cycloalkyl, or -N(11)-(3- to 7-membered)heterocycle; or
(b) -phenyl, -naphthalenyl, or-(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 independently selected R7 groups;
or
(c) -N(11)-phenyl, -N(R)-naphthalenyl, -N(R)-(C14)ary1, or -N(Re)-(5- to 10-
mcmbered)heteroaryl, each of which is unsubstituted or substituted with 1, 2
or 3
independently selected R7 groups;
each It, is independently selected from -H or -(CI-C4)alkyl;
C is selected from -H, -halo, -CN, -0T3, -C(0)0T3, -C(0)N(T)1(T2), -(C3-
C12)cycloalkyl, -(C3-C12)cycloalkoxy, -N(R6)2, -N(R6)C(0)R9, -NR6S02N(R6)2,
-NR-C(NR)N(R6)2, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each of
which -(CI-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
substituents independently selected from -OH, -S(0)2NH2, -N(R6)2, =NR, -
C(0)0T3,
-C(0)N(R6)2, -N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from I to 3
independently
selected -halo;
the dashed line in the piperidine or bridged piperidine central ring denotes
the presence
or absence of a bond, and when the dashed line denotes the presence of a bond
then D is
absent, otherwise D is:
(a) -H, -CN, -C(0)0T3, or -C(0)N(Ti)(T2); or
(b) -(Ci-Cio)alkyl which is unsubstituted or substituted with 1, 2 or 3
independently selected Rg groups and, optionally, in which any D group carbon
atom except
the carbon atom bonded directly to the piperidine or bridged piperidine
central ring, is
independently replaced by 0 or S; or
(c) -phenyl, -naphthalenyl, or -(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 independently selected R7 groups;
Z is -[(CI-Cio)alkyl optionally substituted by where h is 0 or 1; or ¨[(CI-
C10)alkyl]NR6C(=Y)-;
RI is selected from:
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(a) -H, -halo, -CN, -OH, -CH2OH, -CH2CH2OH, -NO2, -N(R6)2, -S(0)Nfi2, -
S(0)2NH2, -C(0)0V1, or -C(0)CN; or
(b) -(C1-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(C1-C6)alkyl, -(C3-
C7)cycloalkoxy, -(C6-C14)bicycloalkyl, -(Cs-C20)tricycloalkyl, -(C5-
C10)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(C8-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, -
(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with an R8 group,
or
R11
R11
(R8)p<')f )k
S. )113 , or
\
I -(R8)p
(R8)p (R8)p
(ii) or
(c) -phenyl, -naphthalenyl, -(Cia)aryl, or -(5- to 10-membered)heteroaryl,
each
of which is unsubstituted or substituted with an R7 group; or
-Z-R1 is 3,3-diphenylpropyl- optionally substituted at the 3 carbon of the
propyl with -
CN, -C(0)N(R6)2, -C(0)0V1, or -tetrazolyl; or
-Z-R1 is -(Ci-C4)alkyl substituted with tetrazolyl;
each R6 is independently selected from -H, -(Ci-C6)alkyl, or -(C3-
C7)cycloalkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
each R7 is independently selected from -(CI-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR9, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, -halo, -N3, -NO2, -CH=NR9,
-NR9OH, -
C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R8 is independently selected from -(CI-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR9, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, oxo, =S,-phenyl, -halo, -
N3, -NO2, -
CH=NR9, -NR9OH, -C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
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each R9 is independently selected from -H, -(Ci-C6)alkyl, -(C2-C6)alkenyl, -
(C2-
C6)alkynyl, -(C3-C8)cycloalkyl, -(C5-C8)cycloalkenyl, -phenyl, -benzyl, -(3-
to 7-
membered)heterocycle, -C(halo)3, -CH(halo)2, or -CH2(halo);
if h is 0, R11 is selected from -H, -C(0)0R9, -C(0)N(R6)2, or -(C1-C4)alkyl
which is
unsubstituted or substituted with -OH, -(Ci-C4)alkoxy, -N(R6)2, -C(0)0R9, or
if h is 1, R11 is selected from -H, -OH, -halo, -C(0)0R9, -C(0)N(R6)2, or -(Ci-
C4)alkyl
which is unsubstituted or substituted with -OH, -(CI-C4)alkoxy, -N(R6)2, -
C(0)0R9, or
-C(0)N(R6)2;
m is an integer selected from 0, 1, 2, 3, 4, 5, 6 or 7;
e and fare each an integer independently selected from 0, 1, 2, 3, 4 or 5
provided that 2
< (e + f) < 5;
j and k are each an integer independently selected from 0, 1, 2, 3 or 4
provided that 1 <
(j + k) 5. 4;
each p is an integer independently selected from0 or 1;
each Ti, T2, and T3 is independently -H or -(Ci-Cio)alkyl which is
unsubstituted or
substituted with 1,2 or 3 independently selected R8 groups and, optionally, in
which any
carbon atom is independently replaced by 0 or S. or T1 and 12 together can
form a 5- to 8-
membered ring where the number of atoms in the ring includes the nitrogen atom
to which T1
and T2 are bonded, said 5- to 8-membered ring is unsubstituted or substituted
with 1, 2 or 3
independently selected R8 groups and, optionally, any carbon atom in said 5-
to 8-membered
ring is independently replaced by 0 or S;
each V1 is independently selected from -H, -(C3-
C7)cycloalkyl, -phenyl,
or -benzyl;
each WI is independently selected from:
(a) -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -0(Ci-C6)alkyl, -(C3-
C7)cycloalkoxy,
-CH2CH2OH, -N(R6)2; or
(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(Ci-C6)alkyl; and
each halo is independently selected from -F, -Cl, -Br, or -I;
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provided that when h is 0, R1 is not -halo or -NO2.
A compound of formula (I), (II), (III) or (IV) or a pharmaceutically
acceptable
derivative thereof (a "Heterocyclic-Substituted Piperidine Compound") is
useful, e.g., as an
analgesic, anti-inflammatory, diuretic, anesthetic agent, neuroprotective
agent, anti-
hypertensive, an anxiolytic agent, an agent for appetite control, hearing
regulator, anti-tussive,
anti-asthmatic, modulator of locomotor activity, modulator of learning and
memory, regulator
of neurotransmitter release, regulator of hormone release, kidney function
modulator, anti-
depressant, agent to treat memory loss due to Alzheimer's disease and/or other
dementias, anti-
epileptic, anti-convulsant, agent to treat withdrawal from alcohol, agent to
treat withdrawal
from drug(s) of addiction, agent to control water balance, agent to control
sodium excretion,
and/or agent to control arterial blood pressure disorder(s).
A Heterocyclic-Substituted Piperidine Compound is useful for treating and/or
preventing pain, anxiety, cough, diarrhea, high blood pressure, epilepsy,
anorexia/cachexia,
urinary incontinence, drug abuse, a memory disorder, obesity, constipation,
depression,
dementia, or Parkinsonism (each being a "Condition") in an animal.
The invention also relates to compositions comprising an effective amount of a
Heterocyclic-Substituted Piperidine Compound and a pharmaceutically acceptable
carrier or
excipient. The compositions are useful for treating or preventing a Condition
in an animal.
The invention further relates to methods for treating a Condition, comprising
administering to an animal in need thereof an effective amount of a
Heterocyclic-Substituted
Piperidine Compound.
The invention further relates to methods for preventing a Condition,
comprising
administering to an animal in need thereof an effective amount of a
Heterocyclic-Substituted
Piperidine Compound.
The invention further relates to a Heterocyclic-Substituted Piperidine
Compound for
use as a medicament.
The invention further relates to the use of a Heterocyclic-Substituted
Piperidine
Compound, e.g., of Formulas (I), (II), (III) and/or (IV), for the manufacture
of a medicament
useful for treating a Condition.
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The invention further relates to the use of a Heterocyclic-Substituted
Piperidine
Compound, e.g., of Formulas (1), (11), (III) and/or (1V), for the manufacture
of a medicament
useful for preventing a Condition.
The invention still further relates to methods for inhibiting ORL-1 receptor
function in
a cell, comprising contacting a cell capable of expressing the ORL-1 receptor
with an ORL-1
receptor function inhibiting amount of a Heterocyclic-Substituted Piperidine
Compound.
The invention still further relates to methods for activating ORL-1 receptor
function in
a cell, comprising contacting a cell capable of expressing the ORL-1 receptor
with an ORL-1
receptor function activating amount of a Heterocyclic-Substituted Piperidine
Compound.
The invention still further relates to methods for preparing a composition,
comprising
the step of admixing a Heterocyclic-Substituted Piperidine Compound and a
pharmaceutically
acceptable carrier or excipient.
The invention still further relates to a kit comprising a container containing
an effective
amount of a Heterocyclic-Substituted Piperidine Compound.
The invention can be understood more fully by reference to the following
detailed
description and illustrative examples, which are intended to exemplify non-
limiting
embodiments of the invention. Other objects and advantages of the invention
will become
apparent from the following detailed description thereof.
4. DETAILED DESCRIPTION OF THE INVENTION
4.1 Heterocyclic-Substituted Piperidine Compounds of Formula (I)
As stated above, the invention encompasses Hetcrocyclic-Substituted Piperidinc
Compounds of Formula (I):
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(R2)a
A N B
RI I
(I)
and pharmaceutically acceptable derivatives thereof where RI, R2, R3, Y, Z, A,
B, C, D, a and
the dashed line are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (I).
In one embodiment, each Y is 0.
In another embodiment, each Y is S.
In another embodiment, A is H.
In another embodiment, B is H.
In another embodiment, A-B together form a (C2-C6)bridgc, which is
unsubstitutcd or
substituted with I, 2 or 3 independently selected R8 groups, and which bridge
optionally
contains -HC=CH- within the (C2-C6)bridgc; wherein the piperazinc ring that is
fused to the
phenyl group can be in the cndo- or cxo- conformation with respect to the A-B
bridge.
In another embodiment, A-B together form a (C2-C6)bridge, which is
unsubstituted or
substituted with an R8 group, and which bridge optionally contains -HC=CH-
within the (C2-
C6)bridge; wherein the piperazine ring that is fused to the phenyl group can
be in the endo- or
exo- conformation with respect to the A-B bridge.
In another embodiment, A-B together form a (C2-C3)bridge, which is
unsubstituted or
substituted with an R8 group, and which bridge optionally contains -HC=CH-
within the (C2-
C6)bridge; wherein the piperazine ring that is fused to the phenyl group can
be in the endo- or
exo- conformation with respect to the A-B bridge.
In another embodiment, A-B together form a (C2-C1)bridge, which is
unsubstituted and
which bridge optionally contains -HC=CH- within the (C2-C3)bridge; wherein the
piperazine
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ring that is fused to the phenyl group can be in the endo- or exo-
conformation with respect to
the A-B bridge.
In another embodiment, A-B together form a (C2)bridge, a -HC=CH- bridge, or a
(C1)bridge each of which is unsubstituted; wherein the piperazine ring that is
fused to the
phenyl group can be in the endo- or exo- conformation with respect to the A-B
bridge.
In another embodiment, C is H.
In another embodiment, D is H.
In another embodiment, a is 0 or 1.
In another embodiment, a is 0.
In another embodiment, a is 1.
In another embodiment, a is 2.
In another embodiment, each Y is 0, A, B, C and D are each H, and a is 0 or 1.
In another embodiment, each Y is S, A, B, C and D are each H, and a is 0 or 1.
In another embodiment, each Y is 0, A, B, C and D are each H, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, and a is 0.
In another embodiment, each Y is 0, A, B, C and D are each H, and a is 1.
In another embodiment, each Y is S, A, B, C and D are each H, and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, and a is 0 or 1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, and a is 0 or 1.
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In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, and a is 0.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R. groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D arc each H, and a is 0.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and Dare each H, and a is 1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or cxo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0 or 1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0 or 1.
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in another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R. group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0 or 1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0 or 1.
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In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R. group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridgc; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0 or
1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0 or
1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
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wherein the piperazine ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0.
In another embodiment, each Y is S. A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 1.
In another embodiment, R3 is -H, -(Ci-C6)alkyl, -(Ci-C6)alkyl substituted by
an R8
group, -(C3-C7)cycloalkyl, or -(C3-C7)cycloalkyl substituted by an RA group.
In another embodiment, R3 is -H, -C(0)0V1, -C(0)N(V1)2, or -(CI-C2)alkyl
substituted
with a substitucnt selected from -NHS(0)2W1, -C(0)0V1, and -C(0)N(V
In another embodiment, R3 is -H.
In another embodiment, R3 is -(Ci-C6)alkyl.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl.
In another embodiment, R3 is -(Ci-C6)alkyl substituted by an R8 group.
In another embodiment, R3 is -(Ci-C6)alkyl substituted by -CN.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl, each of
which is
substituted by an R8 group.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl, each of
which is
substituted by -CN.
In another embodiment, R3 is -(C3-C7)cycloalkyl.
In another embodiment, R3 is cyclopentyl, cyclohexyl, or cycloheptyl.
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In another embodiment, R3 is ¨H or methyl substituted by -CN.
In another embodiment, each Y is 0, A, B, C and D are each H, R1 is -H, -(Ci-
C6)alkyl,
-(Ci-C6)alkyl substituted by an R8 group, or -(C3-00cycloalkyl, and a is 0 or
1.
In another embodiment, each Y is S, A, B, C and D arc each H, R3 is -H, -(Ci-
C6)alkyl,
-(CI-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 0 or
1.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0 or 1.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0 or 1.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is -H, -(Ci-
C6)alkyl,
-(Ci-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is -H, -(C1-
C6)alkyl,
-(Ci-C6)alkyl substituted by an Rs group, or -(C3-C7)cycloalkyl, and a is 0.
In another embodiment, each Y is 0, A, B, C and D arc each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is -H, -(Ci-
C6)alkyl,
-(CI-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 1.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is -H, -(Ci-
C6)alkyl,
-(CI-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is I.
In another embodiment, each Y is 0, A, B, C and D arc each H, R3 is ¨H or
methyl
substituted by -CN, and a is 1.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 1.
In another embodiment, each R2 is independently -halo, -OH, -NH2, -CN, -(Ci-
C6)alkyl, -(C3-C7)cycloalkyl, -(5- or 6-membered)heterocycle, -phenyl, -
naphthalenyl or -(5- or
6-membered)heteroaryl.
In another embodiment, each R2 is independently -halo.
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In another embodiment, a is 2 and each R2 is independently -halo, -OH, -NH2, -
CN, -
(Ci-C6)alkyl, -(C3-C7)cycloallql, -(5- or 6-membered)heterocycle, -phenyl, -
naphthalenyl or
-(5- or 6-membered)heteroaryl.
In another embodiment, a is 2 and each R2 is independently -halo, -OH, -NH2, -
CN,
methyl, ethyl, n-propyl, iso-propyl, cyclopentyl, cyclohexyl, cycloheptyl, or
phenyl.
In another embodiment, a is 2 and each R2 is independently ¨halo.
In another embodiment, a is 1 and R2 is -halo, -OH, -NH2, -CN, -(Ci-C6)alkyl, -
(C3-
C7)cycloalkyl, -(5- or 6-membered)heterocycle, -phenyl, -naphthalenyl or -(5-
or 6-
membered)heteroaryl.
In another embodiment, a is 1 and R2 is -halo, -OH, -NH2, -CN, methyl, ethyl,
n-propyl,
iso-propyl, cyclopentyl, cyclohexyl, cycloheptyl, or phenyl.
In another embodiment, a is 1 and R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A, B, C and D are each H, a is 1, and R2
is -halo,
optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, a is 1, and R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 1,
and R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 1,
and R2 is -halo, optionally ¨F.
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In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, a is 1, and
R2 is -halo,
optionally ¨F.
In another embodiment, each Y is 0, A, B, C and D are each H, a is 0, and R3
is
methyl, ethyl, n-propyl or iso-propyl, each of which is substituted by an Rg
group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, a is 0, and R3 is methyl, ethyl, n-propyl or iso-
propyl, each of
which is substituted by an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 0,
and 16 is methyl, ethyl, n-propyl or iso-propyl, each of which is substituted
by an R8 group, or
¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 0,
and R3 is methyl, ethyl, n-propyl or iso-propyl, each of which is substituted
by an R8 group, or
¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, a is 0, and
R3 is methyl,
ethyl, n-propyl or iso-propyl, each of which is substituted by an R8 group, or
¨H.
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In another embodiment, each Y is 0, A, B, C and D are each H, a is 1, R2 is -
halo,
optionally ¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl, each of which
is substituted by
an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, a is 1, R2 is -halo, optionally ¨F, and R3 is
methyl, ethyl, n-propyl
or iso-propyl, each of which is substituted by an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 1,
R2 is -halo, optionally ¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl,
each of which is
substituted by an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 1,
R2 is -halo, optionally ¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl,
each of which is
substituted by an 11.8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, a is 1, R2 is
-halo, optionally
¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl, each of which is
substituted by an R8
group, or ¨H.
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In another embodiment, R1 is selected from:
1
( )k
(R8)P \
, )rn
, or Al(
,
' I ¨(R8)p =
/
8t
(R)
(i) (iii)
In another embodiment, R1 is selected from formula (i) and m is 5.
In another embodiment, R1 is selected from formula (i), m is 5, and p is 0.
In another embodiment, R1 is selected from formula (i), m is 5, p is 0, and
R11 is -H.
In another embodiment, R1 is selected from formula (i) and m is 3.
In another embodiment, R1 is selected from formula (i), m is 3, and p is 1.
In another embodiment, R1 is selected from formula (i), m is 3, p is I, and R8
is -(C1-
C4)alkyl, optionally iso-propyl.
In another embodiment, R1 is selected from formula (i), m is 3, R11 is -H, p
is I, and R8
is -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, R1 is selected from formula (iii) and j + k = 1.
In another embodiment, R1 is selected from formula (iii), j + k = I, and p is
0.
In another embodiment, R1 is selected from:
(R8)p\ (R8)
p \
( 0 )k
)m\ 6 , Or õ...., -......
1
OR8)p
1 5 (ia) (ib) (iii)
where m is an integer selected from 3, 4 or 5;
j is an integer selected from 1 or 2;
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k is 0; and
each p is an integer independently selected from0 or 1.
In another embodiment, each p is 0.
In another embodiment, in formulas (ia) and (ib) p is 1 and R8 is selected
from -(Ci-
C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 3, p is 1, and R8 is
selected from
-(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 5, p is 1, and R8 is
selected from
-(CI-C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 3 and p is 0.
In another embodiment, in formulas (ia) and (ib) m is 5 and p is 0.
In another embodiment, in formula (iii) one p is 0, the other p is 1, and R8
is selected
from -(CF-C4)alkyl, optionally iso-propyl.
In another embodiment, in formula (iii) j is 1 and each p is 0.
In another embodiment, in formula (iii) j is 1, one p is 0, the other p is 1,
and R8 is
selected from -(CI-C4)alkyl, optionally iso-propyl.
In another embodiment, the Heterocyclic-Substituted Piperidine Compound of
Formula
(I) is
N
N,e0
F (.5H H3Co
a mill*
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H
H
H F H H N 0
N 0 N 0 aik NO
N 0 0 I
140 I * I IIV N 0
N 0 N 0 F N"..0
a
a
a a a N
N
N N N
a 0 0 H3 IC)CH3
, ,
,
N
0
H
NI 0 H
I y H
I
N 0 N 0
0 N(y0 0 N yO 0 ...e,
0 i
N".0 N 0 Isl"..0
_
(1) u.. 1-1 7
1INM Flii:/7
.,õ
H 'I/H
H
H H H41
H H
N N N N N
O a O = .
, ,
,or .
,
In another embodiment, the Heterocyclic-Substituted Piperidinc Compound of
Formula
(I) is
H
H F H H N õ0.0
opN yO lir INL,K) so NO,r op Nr.L0 filo Pniyo
N ".'0 WI N'''.0 F N'-.0
a N".0
a
a (I) a N
N
N N N
a 00 H3H3 71111111111W111
A
C C
, ,
,
,
,
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= I N0 NI 0 NI
0
0
101:: ill %No;
SO
e1/40 N N 0
(1) .1
Hu Ho=A
H /11
H = H H N "H HX)"/H
,or.
In another embodiment for the Heterocyclic-Substituted Piperidine Compounds of
Formula (I):
each R2 is independently selected from:
(a) -halo, -OH, -NH2, -CN, or -NO2; or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(5-
or
6-membered)heterocycle, -phenyl, -naphthyl (otherwise known as -naphthalenyl),
or -(5- or 6-
membered)heteroaryl, each of which is unsubstituted or substituted with 1, 2
or 3 R8 groups;
a is an integer from 0 to 2;
R3 is selected from:
(a) -H; or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(Ci-C6)alkyl, -0(C2-
C6)alkcnyl, -0(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C5-C7)cycloalkenyl, -(C3-
C7)cycloalkoxy,
-(3- to 7-membered)heterocycle, -phenyl, -naphthyl, or -(5- to 1 0-
membered)heteroaryl, each
of which is unsubstituted or substituted with 1, 2 or 3 R8 groups; or
(c) -CH2CH2OH, -(Ci-C6)alkyl(=0)Wi, -C(0)0V1, -C(0)N(V1)2, or -S(0)2(C I-
C6)alkyl; or
(d) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C7)cycloalkyl, -(C3-C7)cycloalkoxy, -(3- to 7-membered)heterocycle, -
phenyl, -
naphthyl, and -(5- to 10-membered)heteroaryl; or
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(e) -(Ci-C3)alkyl substituted with a substituent selected from -N(R6)2,
-S(0)2NH2, -NHC(0)W1, -NHS(0)2W1, -C(0)0V1, and -C(0)N(V1)2;
each WI is independently selected from:
(a) -H, -(C3-C7)cycloalkyl, -0(Ci-C6)alkyl, -(C3-C7)cycloa1koxy,
-CH2CH2OH, -N(R6)2; or
(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(CI-C6)alkyl;
each VI is independently selected from -H, -(Ci-C6)alkyl, -(C3-C7)eycloalkyl, -
phenyl,
or -benzyl;
cach Y is independently selected from 0 or S;
A and B are independently selected from -H, -N(R6)2, -(C3-Ci2)cycloalkyl, or -
(C1-
C6)alkyl each of which -(CI-C6)alkyl is unsubstituted or substituted with -OH,
-S(0)2NH2, or
from 1 to 3 independently selected -halo, or A-B together form a (C2-
C6)bridge;
C is ¨H;
D is ¨H;
the dashed line in the piperidine or bridged piperidine central ring is
absent;
Z is a bond;
R1 is selected from:
R11
<R),11 R11
(Rop ( ( )k
,
, or
R8)(/ 7N
(Rop
(ii) (iii)
m is an integer from 1 to 7;
e and fare independently an integer from 0 to 5 provided that 2 < (e + f) < 5;
j and k are independently an integer from 0 to 4 provided that 1 < (j + k) <
4;
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each R6 is independently selected from -H, -(Ci-C6)alkyl, or -(C3-
C7)cycloalkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
each R8 is independently selected from -(Ci-C4)alkyl, -0(CI-C4)alkyl, -
C(halo)3,
-CH(halo)2, -CH2(halo), -CN, -OH, -halo, or -C(0)0R9;
each R9 is independently selected from -H, -(C1-C6)alkyl, -phenyl, or -benzyl;
each p is independently 0 or 1;
R11 is selected from -H, -(Ci-C4)alkyl, or -halo; and
each halo is independently selected from -F, -Cl, -Br, or -I.
In another embodiment for the Heterocyclic-Substituted Piperidine Compounds of
Formula (I):
each R2 is independently selected from:
(a) -halo, -CN, -NO2, -0T3, -C(0)T3, -C(0)0T3, -C(0)N(T1)(T2), -S(0)3H,
-S(0)2T3, -S(0)2N(T1)(T2), -N(T1)(1.2), -N(T3)C(0)T3, -N(T3)C(0)N(T1)(T2), -
N(T3)S(0)2T3,
or -N(T3)S(0)2N(T1)(T2); or
(b) -(CI-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C6-
Ci4)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-C io)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl, -(5- or 6-membered)heterocycle, or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3 Rg
groups; or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- or 6-membered)heteroaryl, each of
which is unsubstituted or substituted with 1, 2 or 3 R7 groups;
a is an integer from 0 to 2;
R3 is selected from:
(a) -H; or
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(b) -(C2-C6)alkenyl, -(C2-C6)alkYnYI, -0(C1-C6)alkyl, -0(C2-
C6)alkenyl, -0(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-
C7)cycloalkoxy,
-(C6-C14)bicycloalkyl, -(Cg-C20)tricycloalkyl, -(C5-Cio)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -
(Cs-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3 R8
groups; or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl, each of
which is unsubstituted or substituted with 1, 2 or 3 R7 groups; or
(d) -(C -C6)al kyl(=0)W , -(C -C6)alkyl(=NH)W 1, -C(0)0V1, -C(0)N(V1)2,
-S(0)2N(V1)2, or -S(0)2(Ci-C6)alkyl; or
(e) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-C7)cycloalkoxy, -(C6-
C14)bicycloalkyl, -
(Cs-C20)tricycloalkyl, -(C5-C io)cycloalkenyl, -(C7-C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl,
-(3- to 7-membered)heterocycle, -(7- to 10-membered)bicycloheterocycle, -
phenyl, -naphthyl, -
(C14)aryl, or -(5- to 10-membered)heteroaryl; or
(0 -(C1-C3)alkyl substituted with a substituent selected from -N(R6)2,
-S(0)2N(V1)2, -N(R9)C(0)W1, -N(R9)S(0)2W1, and -C(0)N(Vi)2;
each WI is independently selected from:
(a) -H, -(C1-C6)alkyl, -(C3-C7)cycloalkyl, -0(CI-C6)alkyl, -(C3-
C7)cycloalkoxy,
-CH2CH2OH, -N(R6)2; or
(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(CI-C6)alkyl;
each Vi is independently selected from -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -
phenyl,
or -benzyl;
each Y is independently selected from 0 or S;
A and B are independently selected from:
(a) -H, -CN, -C(0)0T3, -C(0)N(T)1(T2), -(C3-C12)cycloalkyl, -(C3-
C12)cycloalkoxy, -(C1-C6)alkyl, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each of
which -(C1-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
substituents selected from -OH, -S(0)2NH2, -N(R6)2, =NR6, -C(0)0T3, -
C(0)N(R6)2,
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-N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from 1 to 3 independently
selected
-halo, or
(b) A-B together form a (C2-C6)bridge, which is unsubstituted or optionally
substituted with from 1 to 3 -OH or optionally contains -HC=CH- within the (C2-
C6)bridge, or
(c) A-B together form a -CH2-N(Ra)-CH2- bridge, a
Rb Rb
C=--0 0=-S=0
-CH2-N-CH2- bridge, or a -CH2-N-CH2- bridge;
R,, is selected from -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -CH2-C(0)-11e, -
(CH2)-C(0)-
OK, -(CH2)-C(0)-N(R)2, -(CH2)2-0-R, -(CH2)2-S(0)2-N(R)2, Rc, or -(CH2)2-
N(R)S(0)2-R.;
Rb is selected from:
(a) -H, -(C1-C6)alkyl, -(C3-C7)cycloalkyl, -(3- to 7-membered)heterocycle,
-N(11)2, -N(Rc)-(C3-C7)cycloalkyl, or -N(K)-(3- to 7-membered)heterocycle,
(b) -phenyl, -naphthyl, or-(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 R7 groups, or
(c) -N(R)-phenyl, -N(R)-naphthyl, -N(Re)-(C14)aryl, or -N(11)-(5- to 10-
membered)heteroaryl, each of which is unsubstituted or substituted with 1, 2
or 3 R7 groups;
each Rc is independently selected from -H or -(C1-C4)alkyl;
C is selected from -H, -halo, -CN, -0T3, -C(0)0T3, -C(0)N(T)1(T2), -(C3-
C12)cycloalkyl, -(C3-C12)cycloalkoxy, -N(R6)2, -N(R6)C(0)R9, -NR6S02N(R6)2,
-NR6-C(=NR6)N(R6)2, -(Ci-C6)alkyl, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each
of which -(Ct-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
substituents selected from -OH, -S(0)2NH2, -N(R6)2, =NR6, -C(0)0T3, -
C(0)N(R6)2,
-N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from 1 to 3 independently
selected
-halo;
the dashed line in the piperidinc or bridged piperidine central ring denotes
the presence
or absence of a bond, and when the dashed line denotes the presence of a bond
then D is
absent, otherwise D is:
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(a) -H, -CN, -C(0)0T3, or -C(0)N(Ti )(T2); or
(b) -(Ci-C10)alkyl which is unsubstituted or substituted with 1, 2 or 3 Rg
groups
and, optionally, in which any D group carbon atom except the carbon atom
bonded directly to
the piperidine or bridged piperidine central ring, is independently replaced
by 0 or S; or
(c) -phenyl, -naphthyl, or -(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 12.2 groups;
Z is a bond;
R1 is selected from:
R11
Rt>1 R11
(R8)p ( ( )k
)171 , , or
R8)p
(R8) (R8)
(i) (10
m is an integer from 1 to 7;
e and fare independently an integer from 0 to 5 provided that 2 < (e + < 5;
j and k are independently an integer from 0 to 4 provided that 1 < (j + k) <
4;
each Ti, T2, and T3 is independently -H or -(C1-Cio)alkyl which is
unsubstituted or
substituted with 1, 2 or 3 R3 groups and, optionally, in which any carbon atom
is independently
replaced by 0 or S, or T1 and 12 together can form a 5- to 8-membered ring
where the number
of atoms in the ring includes the nitrogen atom to which T1 and 12 are bonded,
said 5- to 8-
membered ring is unsubstituted or substituted with 1, 2 or 3 Rg groups and,
optionally, any
carbon atom in said 5- to 8-membered ring is independently replaced by 0 or S;
each R6 is independently selected from -H, -(C1-C6)alkyl, or -(C3-
C7)cycloalkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
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each R7 is independently selected from -(Ci-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR9, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, -halo, -N3, -NO2, -CH=NR9,
-NR9OH, -
C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R8 is independently selected from -(Ci-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR,, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, oxo, =S, -halo, -N3, -NO2,
-CH=NR9, -
NR,OH, -C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R9 is independently selected from -H, -(Ci-C6)alkyl, -(C2-C6)alkenyl, -
(C2-
C6)alkynyl, -(C3-C8)cycloalkyl, -(C5-C8)cycloalkenyl, -phenyl, -benzyl, -(3-
to 6-
membered)heterocycle, -C(halo)3, -CH(halo)2, or -CH2(halo);
each p is independently 0 or 1;
R11 is selected from -H or -(Ci-C4)alkyl which is is unsubstituted or
substituted with -
OH, -(Ci-C4)alkoxy, -N(R6)2, -C(0)0R9, or -C(0)N(R6)2; and
each halo is independently selected from -F, -Cl, -Br, or -I.
4.2 Heterocyclic-Substituted Piperidine Compounds of Formula (II)
As stated above, the invention encompasses Heterocyclic-Substituted Piperidine
Compounds of Formula 04
R3
(R2 a
AiNxy
5 4
, 2
N Y
ANB
RI
(II)
and pharmaceutically acceptable derivatives thereof where RI, R2, R3, Q, Y, Z,
A, B, C, D, a
and the dashed line are defined above for the Heterocyclic-Substituted
Piperidine Compounds
of Formula (11).
In one embodiment, each Y is 0.
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In another embodiment, each Y is S.
In another embodiment, A is H.
In another embodiment, B is H.
In another embodiment, A-B together form a (C2-C6)bridge, which is
unsubstituted or
in another embodiment, A-B together form a (C2-C6)bridge, which is
unsubstituted or
substituted with an R8 group, and which bridge optionally contains -HC=CH-
within the (C2-
In another embodiment, A-B together form a (C2-C3)bridge, which is
unsubstituted or
substituted with an R8 group, and which bridge optionally contains -HC=CH-
within the (C2-
C6)bridge; wherein the piperazine ring that is fused to the Q group can be in
the endo- or exo-
In another embodiment, A-B together form a (C2-C3)bridge, which is
unsubstituted and
which bridge optionally contains -HC=CH- within the (C2-C3)bridge; wherein the
piperazine
ring that is fused to the Q group can be in the endo- or exo- conformation
with respect to the
A-B bridge.
20 In another embodiment, A-B together form a (C2)bridge, a -HC=CH- bridge,
or a
(C3)bridge each of which is unsubstituted; wherein the piperazine ring that is
fused to the Q
group can be in the endo- or exo- conformation with respect to the A-B bridge.
In another embodiment, C is H.
In another embodiment, D is H.
25 In another embodiment, a is 0 or 1.
In another embodiment, a is 0.
In another embodiment, a is 1.
In another embodiment, a is 2.
In another embodiment, each Y is 0, A, B, C and D are each H, and a is 0 or 1.
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In another embodiment, each Y is S, A, B, C and D are each H, and a is 0 or 1.
In another embodiment, each Y is 0, A, B, C and D are each H, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, and a is 0.
In another embodiment, each Y is 0, A, B, C and D are each H, and a is 1.
In another embodiment, each Y is S, A, B, C and D are each H, and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, and a is 0 or 1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected Rs groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and Dare each H, and a is 0 or 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, and a is O.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, and a is O.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, and a is 1.
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In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
and a is 0 or 1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
and a is 0 or 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
and a is 0.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
and a is 0.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
cndo- or exo- conformation with respect to the A-B bridge, C and D arc each H,
and a is 1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
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within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
and a is 0 or 1.
In another embodiment, each Y is S. A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
and a is 0 or 1.
In anothcr embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
and a is 0.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
and a is 0.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
and a is I.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
cndo- or exo- conformation with respect to the A-B bridge, C and D are each H,
and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0 or
1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0 or
1.
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In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D arc each H, and a is 0.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 1.
In another embodiment, R3 is -H, -(Ci-C6)alkyl, -(CI-C6)alkyl substituted by
an R8
group, -(C3-C7)cycloalkyl, or -(C3-C7)cycloallcyl substituted by an R8 group.
In another embodiment, R3 is -H, -C(0)0V1, -C(0)N(V1)2, or -(Ci-C2)alkyl
substituted
with a substituent selected from -NHS(0)2W1, -C(0)0V1, and -C(0)N(V1)2.
In another embodiment, R3 is -H.
In another embodiment, R3 is -(Ci-C6)alkyl.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl.
In another embodiment, R3 is -(CI-C6)alkyl substituted by an R8 group.
In another embodiment, R3 is -(Ci-C6)allcyl substituted by -CN.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl, each of
which is
substituted by an R8 group.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl, each of
which is
substituted by -CN.
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In another embodiment, R3 is -(C3-C7)cycloalkyl.
In another embodiment, R3 is cyclopentyl, cyclohexyl, or cycloheptyl.
In another embodiment, R3 is ¨H or methyl substituted by -CN.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is -H,
-(CI-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloallcyl, and a is 0
or 1.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is -H,
-(CI-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 0 or
1.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0 or 1.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0 or 1.
In another embodiment, each Y is 0, A, B, C and D arc each H, R3 is -H, -(C1-
C6)alkyl,
-(CI-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is -H, -(CI-
C6)alkyl,
-(C1-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 0.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is -H,
-(CI-C6)alkyl substituted by an Rs group, or -(C3-C7)cycloallcyl, and a is 1.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is -H,
-(Ci-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 1.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 1.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 1.
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In another embodiment, each R2 is independently -halo, -OH, -NH2, -CN, -(C1-
C6)alkyl, -(C3-C7)cycloalkyl, -(5- or 6-membered)heterocycle, -phenyl, -
naphthalenyl or -(5- or
6-membered)heteroaryl.
In another embodiment, each R2 is independently -halo.
In another embodiment, a is 2 and each R2 is independently -halo, -OH, -NH2, -
CN, -
(CI-C6)alkyl, -(C3-C7)cycloalkyl, -(5- or 6-membered)heterocycle, -phenyl, -
naphthalenyl or
-(5- or 6-membered)heteroaryl.
In another embodiment, a is 2 and each R2 is independently -halo, -OH, -NH2, -
CN,
methyl, ethyl, n-propyl, iso-propyl, cyclopentyl, cyclohexyl, cycloheptyl, or
phenyl.
In another embodiment, a is 2 and each R2 is independently ¨halo.
In another embodiment, a is 1 and R2 is -halo, -OH, -NH2, -CN, -(C1-C6)alkyl, -
(C3-
C7)cycloalkyl, -(5- or 6-membered)heterocycle, -phenyl, -naphthalenyl or -(5-
or 6-
membered)heteroaryl.
In another embodiment, a is 1 and R2 is -halo, -OH, -NH2, -CN, methyl, ethyl,
n-propyl,
iso-propyl, cyclopentyl, cyclohexyl, cycloheptyl, or phenyl.
In another embodiment, a is 1 and R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A, B, C and D are each H, a is 1, and R2
is -halo,
optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, a is 1, and R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
a is 1, and R2
is -halo, optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
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within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
a is 1, and R2
is -halo, optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, a is 1, and
R2 is -halo,
optionally ¨F.
In another embodiment, each Y is 0, A, B, C and D arc each H, a is 0, and R3
is
methyl, ethyl, n-propyl or iso-propyl, each of which is substituted by an R8
group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected Rg groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, a is 0, and R3 is methyl, ethyl, n-propyl or iso-propyl,
each of which is
substituted by an Rg group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
a is 0, and 1Z1
is methyl, ethyl, n-propyl or iso-propyl, each of which is substituted by an
R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
a is 0, and R3
is methyl, ethyl, n-propyl or iso-propyl, each of which is substituted by an
Ra group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, a is 0, and
RI is methyl,
ethyl, n-propyl or iso-propyl, each of which is substituted by an R8 group, or
¨H.
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In another embodiment, each Y is 0, A, B, C and D are each H, a is 1, R2 is -
halo,
optionally ¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl, each of which
is substituted by
an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected Rg groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the piperazine
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, a is 1, R2 is -halo, optionally ¨F, and R3 is methyl,
ethyl, n-propyl or iso-
propyl, each of which is substituted by an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
a is 1, R2 is -
halo, optionally ¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl, each of
which is
substituted by an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the piperazine ring that is fused to the Q
group can be in the
endo- or exo- conformation with respect to the A-B bridge, C and D are each H,
a is 1, R2 is -
halo, optionally ¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl, each of
which is
substituted by an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the piperazine ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, a is 1, R2 is
-halo, optionally
¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl, each of which is
substituted by an R8
group, or ¨H.
In another embodiment, Q is naphthaleno.
In another embodiment, Q is pyridino.
In another embodiment, Z is a bond.
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In another embodiment, Z is a bond and R1 is selected from:
R11
R
(Rg)P \ .Ii ( 0 )k
c.>
. 6 or /
' I ¨(R8)p =
../
(ROp
(i) (iii)
In another embodiment, Z is a bond, R1 is selected from formula (i), and m is
5.
In another embodiment, Z is a bond, R1 is selected from formula (i), m is 5,
and p is 0.
In another embodiment, Z is a bond, RI is selected from formula (i), m is 5, p
is 0, and
R11 is -H.
In another embodiment, Z is a bond, RI is selected from formula (i), and m is
3.
In another embodiment, Z is a bond, R1 is selected from formula (i), m is 3,
and p is 1.
In another embodiment, Z is a bond, R1 is selected from formula (i), m is 3, p
is I, and
Rg is -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, Z is a bond, R1 is selected from formula (i), m is 3,
R11 is -H, p
is 1, and R8 is -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, Z is a bond, R1 is selected from formula (iii), and j +
k = 1.
In another embodiment, Z is a bond, R1 is selected from formula (iii), j + k =
1, and p is
0.
In another embodiment, Q is pyridino, Z is a bond, and R1 is selected from:
(Rs)p\ (R8)p\
( lal )1(
or õ....."1.......õ
I ¨Op ;
..'
(R8)( ¨(R8) (R
(ia) (ib) (iii)
where m is an integer selected from 3, 4 or 5;
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j is an integer selected from 1 or 2;
k is 0; and
each p is an integer independently selected from or 1.
In another embodiment, each p is 0.
In another embodiment, in formulas (ia) and (ib) p is 1 and R8 is selected
from -(C1-
C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 3, p is 1, and Rg is
selected from
-(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 5, p is 1, and Rg is
selected from
-(C1-C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 3 and p is 0.
In another embodiment, in formulas (ia) and (ib) m is 5 and p is 0.
In another embodiment, in formula (iii) one p is 0, the other p is 1, and Rg
is selected
from -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, in formula (iii) j is 1 and each p is 0.
In another embodiment, in formula (iii) j is 1, one p is 0, the other p is 1,
and Rg is
selected from -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, thc Heterocyclic-Substituted Piperidine Compound of
Formula
(II) is
(X,10,0
N1'..14*0
In another embodiment for the Heterocyclic-Substituted Piperidinc Compounds of
Formula (II):
Q is selected from naphtho (otherwise known as naphthaleno) or pyridino;
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each R2 is independently selected from:
(a) -halo, -OH, -NH2, -CN, or -NO2; or
(b) -(C2-C6)alkenyl, -(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(5- or
6-membered)heterocycle, -phenyl, -naphthyl, or -(5- or 6-membered)heteroaryl,
each of which
is unsubstituted or substituted with 1, 2 or 3 R8 groups;
a is an integer from 0 to 2;
R3 is selected from:
(a) -H; or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(Ci-C6)alkyl, -0(C2-
C6)alkenyl, -0(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C5-C7)cycloalkenyl, -(C3-
C7)cycloalkoxy,
-(3- to 7-membered)heterocycle, -phenyl, -naphthyl, or -(5- to 10-
membered)heteroaryl, each
of which is unsubstituted or substituted with 1, 2 or 3 R8 groups; or
(c) -CH2CH2OH, -(C1-C6)alkyl(=0)Wi, -C(0)0V1, -C(0)N(Vi)2, or -S(0)2(Ci-
C6)alkyl; or
(d) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(CI-C7)cycloalkyl, -(C3-C7)cycloalkoxy, -(3- to 7-membered)heterocycle, -
phenyl, -
naphthyl, and -(5- to 10-membered)heteroaryl; or
(e) -(Ci-C3)alkyl substituted with a substituent selected from -N(R6)2,
-S(0)2NH2, -NHC(0)W1, -NHS(0)2W1, -C(0)0V1, and -C(0)N(Vi)2;
each Y is independently selected from 0 or S;
A and B are independently selected from -H, -N(R6)2, -(C3-C12)cycloalkyl, or -
(C
C6)alkyl each of which -(C1-C6)alkyl is unsubstituted or substituted with -OH,
-S(0)2NH2, or
from 1 to 3 independently selected -halo, or A-B together form a (C2-
C6)bridge;
C is -H;
D is -H;
the dashed line in the piperidine or bridged piperidine central ring is
absent;
Z is -[(CI-Cio)alkyl]h-, wherein h is 0 or 1; or -(C1-Cio)alkyl-NR6C(=Y)-;
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R1 is selected from:
(a) -H, -halo, -CN, -OH, -CH2OH, -CH2CH2OH, -NO2, -N(R6)2, -S(0)NH2, -
S(0)2NH2, -C(0)0V1, or -C(0)CN; or
(b) -(C1-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(C1-C6)alkyl, -(C3-
C7)cycloalkoxy, -(C6-C14)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-
C10)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(Cs-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, -
(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with an R8 group,
or
R11
R11
(R8)p\ ( )f )k
)rn ,1111111,
,
-(R8)p
(R8)(..-
or õ...
(REi)µ
(i) (ii) (iii)
or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl, each of
which is unsubstituted or substituted with an R8 group; or
-Z-R1 is 3,3-diphenylpropyl- optionally substituted at the 3 carbon of the
propyl with -
CN, -C(0)N(R6)2, -C(0)0V1, or -tetrazolyl; or
-Z-R1 is -(C1-C4)alkyl substituted with tetrazolyl;
each R6 is independently selected from -H, -(Ci-C6)alkyl, or -(C3-
C7)cycloalkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
each R8 is independently selected from -(Ci-C4)alkyl, -0(CI-C4)alkyl, -
C(halo)3,
-CH(halo)2, -CH2(halo), -CN, -OH, -halo, or -C(0)0R9;
each R9 is independently selected from -H, -(Ci-C6)alkyl, -phenyl, or -benzyl;
is selected from -H, -(C1-C4)alkyl, or -halo;
m is an integer from 1 to 7;
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e and fare independently an integer from 0 to 5 provided that 2 < (e + 0 < 5;
j and k are independently an integer from 0 to 4 provided that 1 < (j + k) <
4;
each p is independently 0 or 1;
each VI is independently selected from -H, -(C1-C6)alkyl, -(C3-C7)cycloalkyl, -
phenyl,
or -benzyl;
each W1 is independently selected from:
(a) -H, -(C i-C6)alkyl, -(C3-C7)cycloalkyl, -0(C -Co)alkyl, -(C3-
C7)cycloalkoxY,
-CH2CH2OH, -N(R6)2; or
(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(C1-C6)alkyl; and
each halo is independently selected from -F, -Cl, -Br, or -I;
provided that when h is 0, then Ri is not -halo or -NO2;
provided that when Q is pyridino, then R2 is not imidazolyl or triazolyl;
provided that when Q is pyridino and R2 is -phenyl, -naphthyl, or -(5- or 6-
membered)heteroaryl, then the R2 group is not attached to a pyridino atom
bonded to a 5- or 6-
position carbon atom; and
provided that R3 does not include an imidazolyl group.
In another embodiment for the Heterocyclic-Substituted Piperidine Compounds of
Formula (II):
Q is selected from naphthaleno or pyridino;
each R2 is independently selected from:
(a) -halo, -CN, -NO2, -0T3, -C(0)T, -C(0)0T3, -C(0)N(T1)(T2), -S(0)3H,
-S(0)2T3, -S(0)2N(TI)(T2), -N(T1)(T2), -N(T3)C(0)T3, -N(T3)C(0)N(T1)(T2), -
N(T3)S(0)2T3,
or -N(T3)S(0)2N(T1)(T2); or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C6-
C14)bicycloalkyl, -(Cs-C20)tricycloalkyl, -(C5-Cio)cycloalkenyl, -(C7-
Ci4)bicycloalkenyl, -(C8-
C20)tricycloalkenyl, -(5- or 6-membered)heterocycle, or -(7- to 10-
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membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3 Rs
groups; or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- or 6-membered)heteroaryl, each of
which is unsubstituted or substituted with 1, 2 or 3 R7 groups;
a is an integer from 0 to 2;
R3 is selected from:
(a) -H; or
(b) -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(CI-C6)alkyl, -0(C2-
C6)a1keny1, -0(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-
C7)cycloalkoxy,
-(C6-C14)bicycloalkyl, -(Cs-C20)tricycloalkyl, -(C5-Cio)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -
(C8-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3 Rs
groups; or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl, each of
which is unsubstituted or substituted with 1, 2 or 3 R7 groups; or
(d) -(C1-C6)alkyl(=-0)WI, -(Ci-C6)alkyl(=NH)Wi, -C(0)0V1, -C(0)N(V
-S(0)2N(V1)2, or -S(0)2(Ci-C6)alkyl; or
(e) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-C7)cycloalkoxy, -(C6-
C14)bicycloalkyl, -
(C8-C20)tricycloalkyl, -(C5-Cio)cycloalkenyl, -(C7-C14)bicyc lo alkenyl, -(C8-
C20)tricycloalkenyl,
-(3- to 7-membered)heterocycle, -(7- to 10-membered)bicycloheterocycle, -
phenyl, -naphthyl, -
(C14)aryl, or -(5- to 1 0-membered)heteroaryl; or
(f) -(CI-C3)alkyl substituted with a substituent selected from -N(R6)2,
-S(0)2N(V1)2, -N(R9)C(0)W1, -N(R9)S(0)2W1, and -C(0)N(V1)2;
each Y is independently selected from 0 or S;
A and B are independently selected from:
(a) -H, -CN, -C(0)0T3, -C(0)N(T)1(T2), -(C3-C12)cycloallcyl, -(C3-
C12)cycloalkoxy, -(Ci-C6)alkyl, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each of
which -(Ci-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
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substituents selected from -OH, -S(0)2NH2, -N(R6)2, -NR6, -C(0)0T3, -
C(0)N(R6)2,
-N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from 1 to 3 independently
selected
-halo, or
(b) A-B together form a (C2-C6)bridge, which is unsubstituted or optionally
substituted with from 1 to 3 -OH or optionally contains -HC=CH- within the (C2-
C6)bridge, or
(c) A-B together form a -CH2-N(Ra)-CH2- bridge, a
Rb Rb
C=0
-CH2-N-CI-12- bridge, or a --cH2____N_cH2- bridge;
Ra is selected from -11, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -CH2-C(0)-Re, -
(CH2)-C(0)-
0Re, -(CH2)-C(0)-N(Re)2, -(CH2)2-0-Re, -(CH2)2-S(0)2-N(Re)2, Re, or -(CH2)2-
N(R)S(0)2-R.;
Rb is selected from:
(a) -H, -(CI-C6)alkyl, -(C3-C7)cycloalkyl, -(3- to 7-membered)heterocycle,
-N(Re)2, -N(Rc)-(C3-C7)cycloalkyl, or -N(Rc)-(3- to 7-membered)heterocycle,
(b) -phenyl, -naphthyl, or-(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 R7 groups, or
(c) -N(R)-phenyl, -N(Re)-naphthyl, -N(Re)-(Cia)aryl, or -N(Re)-(5- to 10-
membered)heteroaryl, each of which is unsubstituted or substituted with 1, 2
or 3 R7 groups;
each Re is independently selected from -H or -(Ci-C4)alkyl;
C is selected from -H, -halo, -CN, -OT, -C(0)0T3, -C(0)N(T)1(T2), -(C3-
C12)cycloalkyl, -(C3-C12)cycloalkoxy, -N(R6)2, -N(R6)C(0)R9, -NR6S02N(R6)2,
-NR6-C(=NR6)N(R6)2, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each of which -(C1-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
substituents selected from -OH, -S(0)2NH2, -N(R6)2, -C(0)0T3, -C(0)N(R6)2,
-N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from 1 to 3 independently
selected
-halo;
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the dashed line in the piperidine or bridged piperidine central ring denotes
the presence
or absence of a bond, and when the dashed line denotes the presence of a bond
then D is
absent, otherwise D is:
(a) -H, -CN, -C(0)0T3, or -C(0)N(Ti)(T2); or
(b) -(C1-C1o)alkyl which is unsubstituted or substituted with 1, 2 or 3 R8
groups
and, optionally, in which any D group carbon atom except the carbon atom
bonded directly to
the piperidine or bridged piperidine central ring, is independently replaced
by 0 or S; or
(c) -phenyl, -naphthyl, or -(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 R7 groups;
Z is -[(Cl-Cio)alkyl]h-, wherein his 0 or 1; or ¨(Ci-Cio)alkyl-NR6C(=Y)-;
R1 is selected from:
(a) -H, -halo, -CN, -OH, -CH2OH, -CH2CH2OH, -NO2, -N(R6)2, -S(0)NH2, -
S(0)2NH2, -C(0)0V1, or -C(0)CN; or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)allcynyl, -0(Ci-C6)allcyl, -(C3-
C7)cycloallcoxy, -(C6-C14)bicycloalkyl, -(C8-C20)tricycloakt, -(C5-
C10)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(C8-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, -
(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with an R8 group,
or
R11
R11
(Re)p (, )k
, Or
(ROp
(R8)rf,
(i) (ii) (iii)
or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl, each of
which is unsubstituted or substituted with an R7 group; or
-Z-R1 is 3,3-diphenylpropyl- optionally substituted at the 3 carbon of the
propyl with -
CN, -C(0)N(R6)2, -C(0)0V1, or -tetrazolyl; or
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-Z-R1 is -(Ci-C4)alkyl substituted with tetrazolyl;
each R6 is independently selected from -H, -(Ci-C6)alkyl, or -(C3-
C7)cycloalkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
each R7 is independently selected from -(Ct-C4)alkyl, -(C2-C6)a1kenyl, -(C2-
C6)alkynyl,
-0R9, -SR9, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, -halo, -N3, -NO2, -CH=NR9,
-NR9OH, -
C(0)0R9,-0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each Rg is independently selected from -(Ci-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-OR% -C(halo)3, -CH(halo)2, -CH2(halo), -CN, oxo, =S, -halo, -N3, -NO2, -
CH=NR9, -
NR9OH, -C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R9 is independently selected from -H, -(Ci-C6)alkyl, -(C2-C6)alkenyl, -
(C2-
C6)alkynyl, -(C3-C8)cycloalkyl, -(C5-C8)cycloalkenyl, -phenyl, -benzyl, -(3-
to 6-
membered)heterocycle, -C(halo)3, -CH(halo)2, or -CH2(halo);
if h is 0, R11 is selected from -H or -(Ci-C4)alkyl which is is unsubstituted
or substituted
with -OH, -(Ci-C4)alkoxy, -N(R6)2, -C(0)0R9, or -C(0)N(R6)2;
if h is 1, Rii is selected from -H, -OH, -halo, or -(CI-C4)alkyl which is is
unsubstituted
or substituted with -OH, -(Ci-C4)alkoxY, -N(R6)2, -C(0)0R9, or -C(0)N(R6)2;
m is an integer from 1 to 7;
e and fare independently an integer from 0 to 5 provided that 2 < (e + 0 < 5;
j and k are independently an integer from 0 to 4 provided that 1 < (j + k) <
4;
each p is independently 0 or 1;
each T1, T2, and T3 is independently -H or -(Ci-Clo)alkyl which is
unsubstituted or
substituted with 1, 2 or 3 Rg groups and, optionally, in which any carbon atom
is independently
replaced by 0 or S. or Ti and T2 together can form a 5- to 8-membered ring
where the number
of atoms in the ring includes the nitrogen atom to which Ti and T2 are bonded,
said 5- to 8-
membered ring is unsubstituted or substituted with 1, 2 or 3 R8 groups and,
optionally, any
carbon atom in said 5- to 8-membered ring is independently replaced by 0 or S;
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each VI is independently selected from -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -
phenyl,
or -benzyl;
each WI is independently selected from:
(a) -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -0(Ci-C6)alkyl, -(C3-
C7)cycloalkoxy,
-CH2CH2OH, -N(R6)2; or
(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(Ci-C6)alkyl; and
each halo is independently selected from -F, -Cl, -Br, or -1;
provided that when h is 0, then R1 is not -halo or -NO2;
provided that when Q is pyridino, then R2 is not imidazolyl or triazolyl;
provided that when Q is pyridino and R2 is -phenyl, -naphthyl, or -(5- or 6-
membered)heteroaryl, then the R2 group is not attached to a pyridino atom
bonded to a 5- or 6-
position carbon atom; and
provided that R3 does not include an imidazolyl group.
4.3 Heterocyclic-Substituted Piperidine Compounds of Formula (111)
As stated above, the invention encompasses Heterocyclic-Substituted Piperidine
Compounds of Formula OM:
R3 y
(R2)a
NAX
A N B
Ri
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and pharmaceutically acceptable derivatives thereof where 11.1, R2, R39 Q, X,
Y, Z, A, B, C, D, a
and the dashed line are defined above for the Heterocyclic-Substituted
Piperidine Compounds
of Formula OM.
In one embodiment, each Y is 0.
In another embodiment, each Y is S.
In another embodiment, A is H.
In another embodiment, B is H.
In another embodiment, A-B together form a (C2-C6)bridge, which is
unsubstituted or
substituted with 1, 2 or 3 independently selected R8 groups, and which bridge
optionally
contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic ring that
is fused to the
Q group can be in the endo- or exo- conformation with respect to the A-B
bridge.
In another embodiment, A-B together form a (C2-C6)bridge, which is
unsubstituted or
substituted with an R8 group, and which bridge optionally contains -HC¨CH-
within the (C2-
C6)bridge; wherein the heterocyclic ring that is fused to the Q group can be
in the endo- or exo-
conformation with respect to the A-B bridge.
In another embodiment, A-B together form a (C2-C3)bridge, which is
unsubstituted or
substituted with an R8 group, and which bridge optionally contains -HC=CH-
within the (C2-
C6)bridge; wherein the heterocyclic ring that is fused to the Q group can be
in the endo- or exo-
conformation with respect to the A-B bridge.
In another embodiment, A-B together form a (C2-C3)bridge, which is
unsubstituted and
which bridge optionally contains -HC=CH- within the (C2-C3)bridge; wherein the
heterocyclic
ring that is fused to the Q group can be in the endo- or exo- conformation
with respect to the
A-B bridge.
In another embodiment, A-B together form a (C2)bridge, a -HC=CH- bridge, or a
(C3)bridge each of which is unsubstituted; wherein the heterocyclic ring that
is fused to the Q
group can be in the endo- or exo- conformation with respect to the A-B bridge.
In another embodiment, C is H.
In another embodiment, D is H.
In another embodiment, a is 0 or 1.
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In another embodiment, a is 0.
In another embodiment, a is 1.
In another embodiment, a is 2.
In another embodiment, each Y is 0, A, B, C and D are each H, and a is 0 or 1.
In another embodiment, each Y is S, A, B, C and D are each H, and a is 0 or 1.
In another embodiment, each Y is 0, A, B, C and D are each H, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, and a is 0.
In another embodiment, each Y is 0, A, B, C and D are each H, and a is 1.
In another embodiment, each Y is S. A, B, C and D arc each H, and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, and a is 0 or 1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, and a is 0 or 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, and a is 0.
In another embodiment, each Y is S. A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, and a is 0.
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In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected Rg groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, and a is 1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected Rs groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 0
or 1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 0
or 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 0.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 0.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
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within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 1.
In another embodiment, each Y is S. A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 0
or 1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 0
or 1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 0.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstitutcd or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 0.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
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within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0 or
1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the Q group can be in the endo-
or cxo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0 or
1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D arc each H, and a is 1.
In another embodiment, each Y is S. A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 1.
In another embodiment, R3 is -H, -(Ci-
C6)alkyl substituted by an R8
group, -(C3-C7)cycloalkyl, or -(C3-C7)cycloalkyl substituted by an R8 group.
In another embodiment, R3 is -H, -C(0)0V1, -C(0)N(V1)2, or -(CI-C2)alkyl
substituted
with a substituent selected from -NHS(0)2W1, -C(0)01/1, and -C(0)N(V1)2.
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In another embodiment, R3 is -H.
In another embodiment, R3 is -(Ci-C6)alkyl.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl.
In another embodiment, R3 is -(Ci-C6)alkyl substituted by an R8 group.
In another embodiment, R3 is -(C1-C6)alkyl substituted by -CN.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl, each of
which is
substituted by an R8 group.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl, each of
which is
substituted by -CN.
In another embodiment, R3 is -(C3-C7)cycloalkyl.
In another embodiment, R3 is cyclopentyl, cyclohcxyl, or cycloheptyl.
In another embodiment, R3 is ¨H or methyl substituted by -CN.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is -H, -(Ci-
C6)alkyl,
-(Ci-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 0 or
1.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is -H, -(Ci-
C6)alkyl,
-(CI-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 0 or
1.
In another embodiment, each Y is 0, A, B, C and D are each H, R is ¨H or
methyl
substituted by -CN, and a is 0 or 1.
In another embodiment, each Y is S. A, B, C and D arc each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0 or 1.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is -H, -(Ci-
C6)alkyl,
-(Ci-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is -H, -(Ci-
C6)alkyl,
-(Ci-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 0.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0.
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In another embodiment, each Y is 0, A, B, C and D are each H, R3 is -H, -(Ci-
C6)alkyl,
-(Ci-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 1.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is -H, -(C1-
C6)alkyl,
-(Ci-C6)alkyl substituted by an 1Z8 group, or -(C1-C7)cycloalkyl, and a is 1.
In another embodiment, each Y is 0, A, B, C and D arc each H, R3 is ¨H or
methyl
substituted by -CN, and a is 1.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 1.
In another embodiment, each R2 is independently -halo, -OH, -NH2, -CN, -(C1-
C6)alkyl, -(C3-C7)cycloalkyl, -(5- or 6-membered)heterocycle, -phenyl, -
naphthalenyl or -(5- or
6-membered)heteroaryl.
In another embodiment, each R2 is independently -halo.
In another embodiment, a is 2 and each R2 is independently -halo, -OH, -NH2, -
CN, -
(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -(5- or 6-membered)heterocycle, -phenyl, -
naphthalenyl or
-(5- or 6-membered)heteroaryl.
In another embodiment, a is 2 and each R2 is independently -halo, -OH, -NH2, -
CN,
methyl, ethyl, n-propyl, iso-propyl, cyclopentyl, cyclohexyl, cycloheptyl, or
phenyl.
In another embodiment, a is 2 and each R2 is independently ¨halo.
In another embodiment, a is 1 and R2 is -halo, -OH, -NH2, -CN, -(C1-C6)alkyl, -
(C3-
C7)cycloalkyl, -(5- or 6-membered)heterocycle, -phenyl, -naphthalenyl or -(5-
or 6-
membered)heteroaryl.
In another embodiment, a is 1 and R2 is -halo, -OH, -NH2, -CN, methyl, ethyl,
n-propyl,
iso-propyl, cyclopentyl, cyclohexyl, cycloheptyl, or phenyl.
In another embodiment, a is 1 and R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A, B, C and D are each H, a is 1, and R2
is -halo,
optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
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fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, a is 1, and R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 1, and
R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstitutcd or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 1, and
R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, a is 1, and
R2 is -halo,
optionally ¨F.
In another embodiment, each Y is 0, A, B, C and D are each H, a is 0, and R3
is
methyl, ethyl, n-propyl or iso-propyl, each of which is substituted by an Rg
group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected Rg groups,
and which bridge
optionally contains -HC=CH- within thc (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the Q group can be in thc endo- or cxo- conformation with respect to
the A-B bridge,
C and D are each H, a is 0, and R3 is methyl, ethyl, n-propyl or iso-propyl,
each of which is
substituted by an Rg group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 0, and
R3 is methyl, ethyl, n-propyl or iso-propyl, each of which is substituted by
an Rg group, or ¨H.
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In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 0, and
R3 is methyl, ethyl, n-propyl or iso-propyl, each of which is substituted by
an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, a is 0, and
R3 is methyl,
ethyl, n-propyl or iso-propyl, each of which is substituted by an R8 group, or
¨H.
In another embodiment, each Y is 0, A, B, C and D are each H, a is 1, R2 is -
halo,
optionally ¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl, each of which
is substituted by
an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the Q group can be in the endo- or exo- conformation with respect to
the A-B bridge,
C and D are each H, a is 1, R2 is -halo, optionally ¨F, and R3 is methyl,
ethyl, n-propyl or iso-
propyl, each of which is substituted by an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 1, R2
is -halo, optionally ¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl, each
of which is
substituted by an R. group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the Q
group can be in
the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 1, R2
is -halo, optionally ¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl, each
of which is
substituted by an R8 group, or ¨H.
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In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the Q group can be in the endo-
or exo-
conformation with respect to the A-B bridge, C and D are each H, a is I, R2 is
-halo, optionally
¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl, each of which is
substituted by an R8
group, or ¨H.
In another embodiment, Q is benzo, naphthaleno, or (5- to 10-
membered)heteroaryl.
In another embodiment, Q is benzo.
In another embodiment, Q is naphthaleno.
In another embodiment, Q is pyridino, pyrimidino, pyrazino, pyridazino,
pyrrolino,
imidazolino, pyrazolino, triazolino, furano, oxazolino, isoxazolino,
oxadiazolino, thiopheno,
thiazolino, isothiazolino, or thiadiazolino.
In another embodiment, Q is pyridino.
In another embodiment, Q is benzo, naphthaleno, or pyridino.
In another embodiment, Q is benzo or pyridino.
In another embodiment, Z is a bond.
In another embodiment, Z is a bond and R1 is selected from:
R11
(R8)p ( )k
)rn or
I ¨(R8)p =
(R8)p
(i) (iii)
In another embodiment, Z is a bond, R1 is selected from formula (i), and m is
5.
In another embodiment, Z is a bond, R1 is selected from formula (i), m is 5,
and p is 0.
In another embodiment, Z is a bond, RI is selected from formula (i), m is 5, p
is 0, and
Rii is -H.
In another embodiment, Z is a bond, R1 is selected from formula (i), and m is
3.
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In another embodiment, Z is a bond, R1 is selected from formula (i), m is 3,
and p is 1.
In another embodiment, Z is a bond, R1 is selected from formula (i), m is 3, p
is 1, and
R8 is -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, Z is a bond, R1 is selected from formula (i), m is 3,
R11 is -H, p
is 1, and R8 is -(C i-C4)alkyl, optionally iso-propyl.
In another embodiment, Z is a bond, R1 is selected from formula (iii), and j +
k = 1.
In another embodiment, Z is a bond, RI is selected from formula (iii), j + k =
1, and p is
0.
In another embodiment, Q is benzo, Z is a bond, and R1 is selected from:
lit
(R8)p )rn (R8) Rii. )k
)111 , or
(R8)p
(ia) (ib) (iii)
where m is an integer selected from 3, 4 or 5;
j is an integer selected from 1 or 2;
k is 0;
each p is an integer independently selected from0 or 1; and
and R11 is¨H, -C(0)0R9, -C(0)N(R6)2, or -(C1-C4)alkyl which is unsubstituted
or
substituted with -C(0)0R9 or -C(0)N(R6)2.
In another embodiment, Q is pyridino, Z is a bond, and R1 is selected from:
Ri
(R8)P (R8)p k
)111 \ 6 , or õJO)
N.,
¨(R8)p ;
(R8)p
(ia) (ib) (iii)
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where m is an integer selected from 3, 4 or 5;
j is an integer selected from 1 or 2;
k is 0;
each p is an integer independently selected from0 or 1; and
and R11 is¨H, -C(0)0R9, -C(0)N(R6)2, or -(Ci-C4)alkyl which is unsubstituted
or
substituted with -C(0)0R9 or -C(0)N(R6)2.
In another embodiment, Rii is¨H, -C(0)0R9 or -C(0)N(R6)2.
In another embodiment, R11 is¨H or -C(0)0R9.
In another embodiment, R11 is¨H.
In another embodiment, Rit is -C(0)0R9.
In another embodiment, R11 is -C(0)0H or -C(0)0(Ci-C6)alkyl.
In another embodiment, R11 is¨H or -C(0)0(CI-C6)alkyl.
In another embodiment, R is -C(0)0H or -C(0)0CH3.
In another embodiment, R11 is¨H or-C(0)0CH3.
In another embodiment, each p is 0.
In another embodiment, in formulas (ia) and (ib) p is 1 and R8 is selected
from -(C1-
C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 3, p is 1, and R8 is
selected from
-(Cl-C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 5, p is 1, and R8 is
selected from
-(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 3 and p is 0.
In another embodiment, in formulas (ia) and (ib) m is 5 and p is 0.
In another embodiment, in formula (iii) one p is 0, the other p is 1, and Rs
is selected
from -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, in formula (iii) j is 1 and each p is 0.
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In another embodiment, in formula (iii) j is 1, one p is 0, the other p is 1,
and R8 is
selected from -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, R11 is-H or -C(0)0(Ci-C6)alkyl and each p is 0.
In another embodiment, in formulas (ia) and (ib) R11 is-H or -C(0)0(CI-
C6)alkyl, p is
1, and Rs is selected from -(C1-C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) R11 is-H or -C(0)0(C1-
C6)alkyl, m is
3, p is 1, and R8 is selected from -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) R11 is-H or -C(0)0(C1-
C6)alkyl, m is
5, p is 1, and R8 is selected from -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) R11 is-H or -C(0)0(Ci-
C6)alkyl, m is
3, and p is 0.
In another embodiment, in formulas (ia) and (ib) Rii is-H or -C(0)0(Ci-
C6)alkyl, m is
5, and p is 0.
In another embodiment, in formula (iii) R11 is-H or -C(0)0(CI-C6)alkyl, one p
is 0, the
other p is 1, and R8 is selected from -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, in formula (iii) R11 is-H or -C(0)0(C1-C6)alkyl, j is
1, and
each p is 0.
In another embodiment, in formula (iii) R11 is-H or -C(0)0(Ci-C6)alkyl, j is
1, one p is
0, the other p is 1, and R8 is selected from -(CI-C4)alkyl, optionally iso-
propyl.
In another embodiment, X is -C(R4)(R5)- or -N(R13)-=
In another embodiment, X is -C(R4)(R5)-.
In another embodiment, X is -CH2-=
In another embodiment, X is -C(R4)(R5)-, R4 is -(Ci-C6)alkyl, and R5 is -(C1-
C6)allcyl.
In another embodiment, X is -C[(CI-C6)alkyl]2-.
In another embodiment, X is -C(C2H5)2-.
In another embodiment, X is -N(R13)-.
In another embodiment, R is -C4)alkyl substituted with I, 2 or 3
substituents
independently selected from -(C3-C12)cycloalkyl which is unsubstituted or
further substituted
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with 1, 2 or 3 independently selected R8 groups, or -(3- to 7-
membered)heterocycle which is
unsubstituted or further substituted with 1, 2 or 3 independently selected R8
groups.
In another embodiment, R13 is -(Ci-C4)alkyl substituted with 1, 2 or 3
substituents
independently selected from -0C(0)(C3-C8)cycloalkyl, -NHS(0)2(C3-
C8)cycloalkyl,
-NHC(0)W2, and -NHS(0)2W2.
In another embodiment, R13 is -(Ci-C6)alkyl(=0)W2 or -(Ci-C6)alkyl-W2.
In another embodiment, R13 is -(CI-C6)alkyl(-0)W2.
In another embodiment, R13 is -(Ci-C6)alkyl(=0)N(R6)2.
In another embodiment, R13 is -(CI-C6)alkyl(=0)NH(R6).
In another embodiment, R13 is -(CI-C6)alkyl(=0)NH(CI-C6)alkyl).
In another embodiment, R is -(Ci-C6)alkyl(=0)NRCI-C6)alky112.
In another embodiment, R13 is -(Ci-C6)alkyl(=0)N(CH3)2.
In another embodiment, R13 is -(Ci-C6)alkyl-W2.
In another embodiment, R13 is -(Ci-C6)alkyl-N(R6)2.
In another embodiment, R13 is -(CI-C6)alkyl-NH(R6).
In another embodiment, R13 is -(Ci -C6)alkyl-NH(Ci-C6)alkyl).
In another embodiment, R13 is -(CI-C6)alkyl-N[(CI-C6)alkyl]2.
In another embodiment, R13 is -(Ci-C6)alkyl-N(C2H5)2.
In another embodiment, X is -NH-.
In another embodiment, X is ¨N(Ci-C6)a1kyl where the (Ci-C6)alkyl is
optionally
substituted with 1, 2 or 3 independently selected R8 groups.
In another embodiment, X is ¨N(Ci-C4)alkyl where the (Ci-C4)alkyl is
substituted with
-N(R6)2.
In another embodiment, X is ¨N(C2)alkyl where the (C2)alkyl is substituted
with
-N(R6)2.
In another embodiment, X is ¨N(Ci-C4)alkyl where the (Ci-C4)alkyl is
substituted with
-C(0)N(R9)2.
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In another embodiment, X is -N(Ci)alkyl where the (C1)alkyl is substituted
with
-C(0)N(R9)2.
In another embodiment, X is -N(CI-C4)alkyl where the (Ci-C4)alkyl is
substituted with
-C(0)0R,.
In another embodiment, X is -N(CI)alkyl where the (C1)alkyl is substituted
with
-C(0)0R9.
In another embodiment, the Heterocyclic-Substituted Piperidine Compound of
Formula
(III) is
F H 0 0 0 0
H 0
is N F . No HNA HNA *FINA
N N
a 0
a N 0 * N 0
N N H
a N.'H H-ff'H
6 (:),) N
a,
, , ,a ,
H
0 0 H
1 0
HN HN N io NN1
N
a a *
Ao ocl v, F
"/H
a .
11 N
N N Crsrj N 0
a , a
, 0 , 0 ' or C30-CH3
In another embodiment, the Heterocyclic-Substituted Piperidine Compound of
Formula
(III) is
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4 r:ro 0 0
0
0
HN HNA 1101 F N
Ito N
N 0 HiV
F 0 0
H N
C3
(1 5 oCN-J N 0 0-
CH3
5 5 ,or
In another embodiment for the Heterocyclic-Substituted Piperidine Compounds of
Formula (III):
Q is selected from benzo, naphtho, (Cm)aryl, (C3-C12)cycloalkyl, (C6-C
14)bicycloalkyl,
5 (Cs-
Cio)cycloalkenyl, (C7-C14)bicycloalkenyl, (3- to 7-membered)heterocycle, or (5-
to 10-
membered)heteroaryl;
each R2 is independently selected from:
(a) -halo, -OH, -NH2, -CN, or -NO2; or
(b) -(Ci-C6)alkyl, -(C2-C6)aLkenyl, -(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(5-
or
6-membered)heterocycle, -phenyl, -naphthyl, or -(5- or 6-membered)heteroaryl,
each of which
is unsubstituted or substituted with 1, 2 or 3 Rg groups;
a is an integer from 0 to 2;
R3 is selected from:
(a) -H; or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(Ci-C6)alkyl, -0(C2-
C6)alkenyl, -0(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(Cs-C7)cycloalkenyl, -(C3-
C7)cycloalkoxy,
-(3- to 7-membered)heterocycle, -phenyl, -naphthyl, or -(5- to 10-
membered)heteroaryl, each
of which is unsubstituted or substituted with 1, 2 or 3 Rg groups; or
(c) -CH2CH2OH, -(CI-C6)alkyl(=0)WI, -C(0)0V1, -C(0)N(V1)2, or -S(0)2(C1-
C6)alkyl; or
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(d) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C7)cycloalkyl, -(C'3-C7)cycloalkoxy, -(3- to 7-membered)heterocycle,
-phenyl, -
naphthyl, and -(5- to 10-membered)heteroaryl; or
(e) -(C1-C3)alkyl substituted with a substituent selected from -N(116)2,
-S(0)2NH2, -NHC(0)WI, -NHS(0)2W1, -C(0)0V1, and -C(0)N(V1)2;
each Y is independently selected from 0 or S;
X is -C(R4)(R5)-, -N(R6)-, -C(R4)(R5)-C(R4')(R5')-, -C(R4)(R5)-N(R6)-, or -
N(R6)-
C(R4)(R5)-;
each R4 and R4' is independently selected from -H, -0R6, -(Ci-C6)alkyl, or -
(C3-
C7)cycloalkyl; or, independently, any two of R4 and R5, or R4' and R5',
together can form an
oxo group; or any two of R4 and R4' can form a 4- to 8-membered cycloalkyl
ring, the number
of atoms in the ring including the atoms to which the two of R4 and R4' are
attached and any
intervening atoms, if present;
each R5 and R5' is independently selected from -H, -(C1-C6)alkyl, or -(C3-
C7)cycloalkyl;
A and B are independently selected from -H, -N(R6)2, -(C3-C12)cycloalkyl, or -
(C1-
C6)alkyl each of which -(Ci-C6)alkyl is unsubstituted or substituted with -OH,
-S(0)2NH2, or
from 1 to 3 independently selected -halo, or A-B together form a (C2-
C6)bridge;
C is -H;
D is -H;
the dashed line in the piperidine or bridged piperidine central ring is
absent;
Z is -[(CI-C10)alkyl]h-, wherein his 0 or 1; or -(C1-C10)alkyl-NR6C(=Y)-;
R1 is selected from:
(a) -H, -halo, -CN, -OH, -CH2OH, -CH2CH2OH, -NO2, -N(R6)2, -S(0)NH2, -
S(0)2NH2, -C(0)0V1, or -C(0)CN;
(b) -(C1-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(CI-C6)alkyl, -(C3-
C7)cycloalkoxy, -(C6-C14)b icycloalkyl, -(C8-C20)tricycloalkyl, -(C5-
C10)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(Cs-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, -
(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with an R8 group,
or
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R11 R11 R11
(R8)p
)m ,
, or
I'¨R8)p ;
(ROp
(R8)pi
(1) (11) (iii)
or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl, each of
which is unsubstituted or substituted with an R8 group;
-Z-R1 is 3,3-diphenylpropyl- optionally substituted at the 3 carbon of the
propyl with -
CN, -C(0)N(R6)2, -C(0)0V1, or -tetrazolyl; or
-Z-R1 is -(Ci-C4)alkyl substituted with tetrazolyl;
each R6 is independently selected from -H, -(CI-C6)alkyl, or -(C3-
C7)cycloalkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
each Rg is independently selected from -(Ci-C4)alkyl, -0(Ci-C4)alkyl, -
C(halo)3,
-CH(halo)2, -CH2(halo), -CN, -OH, -halo, or -C(0)0R9;
each R9 is independently selected from -H, -(Ci-C6)alkyl, -phenyl, or -benzyl;
R11 is selected from -H, -(Ci-C4)alkyl, or -halo;
m is an integer from 1 to 7;
e and fare independently an integer from 0 to 5 provided that 2 < (e + f) < 5;
j and k are independently an integer from 0 to 4 provided that 1 < (j + k) <
4;
each p is independently 0 or 1;
each V1 is independently selected from -H, -(C3-C7)cycloalkyl, -
phenyl,
or -benzyl;
each W1 is independently selected from:
(a) -H, -(C 1-C6)alkyl, -(C3-C7)cycloalkyl, -0(C -C6)alkyl, -(C3-
C7)eycloalkoxy,
-CH2CH2OH, -N(R6)2; or
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(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(CI-C6)alkyl; and
each halo is independently selected from -F, -Cl, -Br, or -I;
provided that when h is 0, then R1 is not -halo or -NO2;
provided that when Q is benzo, then X is not -N(R6)-;
provided that when Q is benzo, then R3 is not -(CI-C2)alkyl substituted with
-C(0)N(V1)2; and
provided that R3 does not include an imidazolyl group.
In another embodiment for the Heterocyclic-Substituted Piperidine Compounds of
Formula (III):
Q is selected from benzo, naphthaleno, (C14)aryl, (C3-C12)cycloalkyl, (C6-
C14)bicycloalkyl, (C5-Cio)cycloalkenyl, (C7-C14)bicycloalkenyl, (3- to 7-
membered)heterocycle, or (5- to 10-membered)heteroaryl;
each R2 is independently selected from:
(a) -halo, -CN, -NO2, -0T3, -C(0)T3, -C(0)0T3, -C(0)N(T1)(T2), -S(0)3H,
-S(0)2T3, -S(0)2N(TI)(T2), -N(T1)(T2), -N(T3)C(0)T3, -N(T3)C(0)N(T1)(T2), -
N(T3)S(0)2T3,
or -N(T3)S(0)2N(T1)(T2); or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C6-
C14)bicycloalkyl, -(Cs-C20)tricycloalkyl, -(Cs-Cio)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl, -(5- or 6-membered)heterocycle, or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3 Fts
groups; or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- or 6-membered)heteroaryl, each of
which is unsubstitutcd or substituted with 1, 2 or 3 R7 groups;
a is an integer from 0 to 2;
R3 is selected from:
(a) -H; or
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(b) -(C1-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(CI-C6)alkyl, -0(C2-
C6)alkenyl, -0(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-
C7)cycloalkoxy,
-(C6-C14)bicycloalkyl, -(Cg-C20)tricycloalkyl, -(C5-C io)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -
(C8-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3 R8
groups; or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl, each of
which is unsubstituted or substituted with 1, 2 or 3 R7 groups; or
(d) -(C i-C6)alkyl(=0)Wi, -(C -Co)alkyl(=NH)W I, -C(0)0V1, -C(0)N(V1)2,
-S(0)2N(V1)2, or -S(0)2(Ci-C6)alkyl; or
(e) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-C7)cycloalkoxy, -(C6-
C14)bicycloalkyl, -
(Cg-C20)tricycloalkyl, -(C5-C1o)cycloalkenyl, -(C7-C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl,
-(3- to 7-membered)heterocycle, -(7- to 10-membered)bicycloheterocycle, -
phenyl, -naphthyl, -
(Ci4)aryl, or -(5- to 10-membered)heteroaryl; or
(f) -(C1-C3)alkyl substituted with a substituent selected from -N(R6)2,
-S(0)2N(V1)2, -N(R9)C(0)W1, -N(R9)S(0)2W1, and -C(0)N(Vi)2;
each Y is independently selected from 0 or S;
X is -C(R4)(R5)-, -N(R6)-, -C(R4)(R5)-C(R4')(R51)-, -C(R4)=C(R4')-, -C(R4)(R5)-
N(R6)-,
or -N(R6)-C(R4)(R5)-;
each R4 and R4' is independently selected from -H, -0R6, -(CI-C6)alkyl, or -
(C3-
C7)eycloalkyl; or, independently, any two of R4 and R5, or R4' and R5',
together can form an
oxo group; or any two of R4 and R4' can form a 4- to 8-membered cycloalkyl
ring, the number
of atoms in the ring including the atoms to which the two of R4 and R4' are
attached and any
intervening atoms, if present;
each R5 and R5' is independently selected from -H, -(Ci-C6)alkyl, or -(C3-
C7)cycloalkyl;
A and B arc independently selected from:
(a) -H, -CN, -C(0)0T3, -C(0)N(T)1(T2), -(C3-C12)cycloalkyl, -(C3-
C12)cycloalkoxy, -(C1-C6)alkyl, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each of
which -(Ci-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
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substituents selected from -OH, -S(0)2NH2, -N(R6)2, =NR6, -C(0)0T3, -
C(0)N(R6)2,
-N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from 1 to 3 independently
selected
-halo, or
(b) A-B together form a (C2-C6)bridge, which is unsubstituted or optionally
substituted with from I to 3 -OH or optionally contains -HC=CH- within the (C2-
C6)bridge, or
(c) A-B together form a -CH2-N(Ra)-CH2- bridge, a
Rb Rb
C0--S==0
-CH2-N-CH2- bridge, or a --cH2-N_cH2- bridge;
Ra is selected from -H, -(C1-C6)alkyl, -(C3-C7)cycloalkyl, -CH2-C(0)-Re, -
(CH2)-C(0)-
011e, -(CH2)-C(0)-N(Re)2, -(C1-12)2-0-Re, -(CH2)2-S(0)2-N(Re)2, Re, or -(CH2)2-
N(Re)S(0)2-Re;
Rb is selected from:
(a) -H, -(CI-C6)alkyl, -(C3-C7)cycloalkyl, -(3- to 7-membered)heterocycle,
-N(R)2, -N(Re)-(C3-C7)cycloalkyl, or -N(Re)-(3- to 7-membered)heterocycle,
(b) -phenyl, -naphthyl, or-(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 R7 groups, or
(c) -N(R)-phenyl, -N(Re)-naphthyl, -N(Rc)-(C14)aryl, or -N(Rc)-(5- to 10-
membered)heteroaryl, each of which is unsubstituted or substituted with 1, 2
or 3 R7 groups;
each Rc is independently selected from -H or -(Ci-C4)alkyl;
C is selected from -H, -halo, -CN, -0T3, -C(0)0T3, -C(0)N(T)1(T2), -(C1-
C12)cycloalkyl, -(C3-C12)cycloalkoxy, -N(R6)2, -N(R6)C(0)R9, -NR6S02N(R6)2,
-NR6-C(=NR6)N(R6)2, -(C1-C6)alkyl, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each
of which -(C1-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
substituents selected from -OH, -S(0)2NH2, -N(R6)2, =NR6, -C(0)0T3, -
C(0)N(R6)2,
-N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from I to 3 independently
selected
-halo;
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the dashed line in the piperidine or bridged piperidine central ring denotes
the presence
or absence of a bond, and when the dashed line denotes the presence of a bond
then D is
absent, otherwise D is:
(a) -H, -CN, -C(0)01'1, or -C(0)N(Ti)(T2); or
(b) -(Ci-Cio)alkyl which is unsubstituted or substituted with 1, 2 or 3 R8
groups
and, optionally, in which any D group carbon atom except the carbon atom
bonded directly to
the piperidine or bridged piperidinc central ring, is independently replaced
by 0 or S; or
(c) -phenyl, -naphthyl, or -(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 R7 groups;
Z is -[(Cl-Cio)alkyl]h-, wherein h is 0 or 1; or -(Ci-Cio)alkyl-NR6C(=Y)-;
R1 is selected from:
(a) -H, -halo, -CN, -OH, -CH2OH, -CH2CH2OH, -NO2, -N(R6)2, -S(0)NH2, -
S(0)2NH2, -C(0)0V1, or -C(0)CN;
(b) -(C1-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(Ci-C6)alkyl, -(C3-
C7)cycloalkoxy, -(C6-C14)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-
C1o)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(Cs-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, -
(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with an R8 group,
or
I R11 R
R11 11
(R8)p\ )f ( )k
)rn , z , Or
I (R8)p 5
(ROp
(R8)p
(i) (ii)
or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl, each of
which is unsubstituted or substituted with an R7 group;
-Z-R1 is 3,3-diphenylpropyl- optionally substituted at the 3 carbon of the
propyl with -
CN, -C(0)N(R6)2, -C(0)0V1, or -tetrazolyl; or
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-Z-R1 is -(Ci-C4)alkyl substituted with tetrazolyl;
each R6 is independently selected from -H, -(CI-C6)alkyl, or -(C3-
C7)cycloalkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
each R7 is independently selected from -(Ci-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR9, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, -halo, -N3, -NO2, -CH=NR9,
-NR9OH, -
C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R8 is independently selected from -(Ci-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR9, -C(halo)3, -CH(halo)2, -C112(halo), -CN, oxo, =S, -halo, -N3, -
NO2, -CH=NR9, -
NR,OH, -C(0)0R9.-0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R9 is independently selected from -H, -(C2-C6)alkenyl, -(C2-
C6)alkynyl, -(C3-C8)cycloalkyl, -(C5-C8)cycloalkenyl, -phenyl, -benzyl, -(3-
to 6-
membered)heterocycle, -C(halo)3, -CH(halo)2, or -CH2(halo);
if h is 0, R11 is selected from -H or -(Ci-C4)alkyl which is is unsubstituted
or substituted
with -OH, -(CI-C4)alkoxy, -N(R6)2, -C(0)0R9, or -C(0)N(R6)2;
if h is 1, R11 is selected from -H, -OH, -halo, or -(Ci-C4)alkyl which is is
unsubstituted
or substituted with -OH, -(CI-C4)alkoxy, -N(R6)2, -C(0)0R9, or -C(0)N(R6)2;
m is an integer from 1 to 7;
e and fare independently an integer from 0 to 5 provided that 2 < (e + f) < 5;
j and k are independently an integer from 0 to 4 provided that 1 < (j + k) <
4;
each p is independently 0 or 1;
each T1, T2, and T3 is independently -H or -(CI-Cio)alkyl which is
unsubstituted or
substituted with 1, 2 or 3 R8 groups and, optionally, in which any carbon atom
is independently
replaced by 0 or S, or Ti and T2 together can form a 5- to 8-membered ring
where the number
of atoms in the ring includes the nitrogen atom to which Ti and T2 are bonded,
said 5- to 8-
membered ring is unsubstituted or substituted with 1, 2 or 3 R8 groups and,
optionally, any
carbon atom in said 5- to 8-membered ring is independently replaced by 0 or S;
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each VI is independently selected from -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -
phenyl,
or -benzyl;
each WI is independently selected from:
(a) -H, -(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -0(C1-C6)alkyl, -(C3-
C7)cycloalkoxy,
-CH2CH2OH, -N(R6)2; or
(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(Ci-C6)alkyl; and
each halo is independently selected from -F, -Cl, -Br, or -I;
provided that when h is 0, then R1 is not -halo or -NO2;
provided that when Q is benzo, then X is not -N(R6)-;
provided that when Q is benzo, then R3 is not -(C1-C2)alkyl substituted with
-C(0)N(Vi)2; and
provided that R3 does not include an imidazolyl group.
4.4 Heterocyclic-Substituted Piperidine Compounds of Formula (IV)
As stated above, the invention encompasses Heterocyclic-Substituted Piperidine
Compounds of Formula (IV):
R3 y
(R2)a
A N B
R1
(IV)
or a pharmaceutically acceptable derivative thereof where Rt, R2, R3, R12, Y,
Z, A, B, C, D, a
and the dashed line are defined above for the Heterocyclic-Substituted
Piperidine Compounds
of Formula (IV).
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In one embodiment, each Y is 0.
In another embodiment, each Y is S.
In another embodiment, A is H.
In another embodiment, B is H.
In another embodiment, A-B together form a (C2-C6)bridge, which is
unsubstituted or
substituted with 1, 2 or 3 independently selected R8 groups, and which bridge
optionally
contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic ring that
is fused to the
phenyl group can be in the endo- or exo- conformation with respect to the A-B
bridge.
In another embodiment, A-B together form a (C2-C6)bridge, which is
unsubstituted or
substituted with an R8 group, and which bridge optionally contains -HC=CH-
within the (C2-
C6)bridge; wherein the heterocyclic ring that is fused to the phenyl group can
be in the endo- or
exo- conformation with respect to the A-B bridge.
In another embodiment, A-B together form a (C2-C8)bridge, which is
unsubstituted or
substituted with an R8 group, and which bridge optionally contains -HC=CH-
within the (C2-
C6)bridge; wherein the heterocyclic ring that is fused to the phenyl group can
be in the endo- or
exo- conformation with respect to the A-B bridge.
In another embodiment, A-B together form a (C2-C3)bridge, which is
unsubstituted and
which bridge optionally contains -HC=CH- within the (C2-C3)bridge; wherein the
heterocyclic
ring that is fused to the phenyl group can be in the endo- or exo-
conformation with respect to
the A-B bridge.
In another embodiment, A-B together form a (C2)bridge, a -HC=CH- bridge, or a
(C3)bridge each of which is unsubstituted; wherein the heterocyclic ring that
is fused to the
phenyl group can be in the endo- or exo- conformation with respect to the A-B
bridge.
In another embodiment, C is H.
In another embodiment, D is H.
In another embodiment, a is 0 or 1.
In another embodiment, a is 0.
In another embodiment, a is 1.
In another embodiment, a is 2.
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In another embodiment, each Y is 0, A, B, C and D are each H, and a is 0 or 1.
In another embodiment, each Y is S, A, B, C and D are each H, and a is 0 or 1.
In another embodiment, each Y is 0, A, B, C and D are each H, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, and a is 0.
In another embodiment, each Y is 0, A, B, C and D are each H, and a is 1.
In another embodiment, each Y is S, A, B, C and D are each H, and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, and a is 0 or 1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridgc, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected It.g
groups, and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, and a is 0 or 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, and a is 0.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, and a is 0.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridgc; wherein the heterocyclic
ring that is
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fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, and a is 1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, and a is 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0 or 1.
In another embodiment, each Y is S. A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0 or 1.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
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in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
1.
In another embodiment, each Y is S, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rs group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0 or 1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0 or 1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridgc; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
0.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
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in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an R8 group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, and a is
1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0 or
1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0 or
1.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstitutcd and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 0.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 1.
In another embodiment, each Y is S, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, and a is 1.
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In another embodiment, R3 is -H, -(Ci-C6)alkyl, -(C1-C6)alkyl substituted by
an R8
group, -(C3-C7)cycloalkyl, or -(C3-C7)cycloalkyl substituted by an R8 group.
In another embodiment, R3 is -H, -C(0)0V1, -C(0)N(V1)2, or -(Ci-C2)alkyl
substituted
with a substituent selected from -NHS(0)2W1, -C(0)0V1, and -C(0)N(V1)2.
In another embodiment, R3 is -H.
In another embodiment, R3 is -(Ci-C6)alkyl.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl.
In another embodiment, R3 is -(Ci-C6)alkyl substituted by an R8 group.
In another embodiment, R3 is -(Ci-C6)alkyl substituted by -CN.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl, each of
which is
substituted by an R8 group.
In another embodiment, R3 is methyl, ethyl, n-propyl or iso-propyl, each of
which is
substituted by -CN.
In another embodiment, R3 is -(C3-C7)cycloalkyl.
In another embodiment, R3 is cyclopentyl, cyclohexyl, or cycloheptyl.
In another embodiment, R3 is ¨H or methyl substituted by -CN.
In another embodiment, each Y is 0, A, B, C and D are each H, RI is -H, -(C1-
C6)alkyl,
-(Ci-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 0 or
1.
In another embodiment, each Y is S, A, B, C and D arc each H, R3 is -H, -(C1-
C6)alkyl,
-(CI-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 0 or
1.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0 or 1.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0 or 1.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is -H, -(C1-
C6)alkyl,
-(Ci-C6)alkyl substituted by an R8 group, or -(C3-C7)eycloalkyl, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is -H, -(Ci-
C6)alkyl,
-(Ci-C6)alkyl substituted by an R8 group, or -(C3-C7)eyeloalkyl, and a is 0.
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in another embodiment, each Y is 0, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0.
In another embodiment, each Y is S, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 0.
In another embodiment, each Y is 0, A, B, C and D arc each H, R3 is -H, -(Ci-
C6)alkyl,
-(CI-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 1.
In another embodiment, each Y is S. A, B, C and D are each H, R3 is -H, -(CI-
C6)alkyl,
-(C1-C6)alkyl substituted by an R8 group, or -(C3-C7)cycloalkyl, and a is 1.
In another embodiment, each Y is 0, A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is 1.
In another embodiment, each Y is S. A, B, C and D are each H, R3 is ¨H or
methyl
substituted by -CN, and a is I.
In another embodiment, each R2 is independently -halo, -OH, -NH2, -CN, -(C 1-
C6)alkyl, -(C3-C7)cycloalkyl, -(5- or 6-membered)heterocycle, -phenyl, -
naphthalenyl or -(5- or
6-membered)heteroaryl.
In another embodiment, each R2 is independently -halo.
In another embodiment, a is 2 and each R2 is independently -halo, -OH, -NH2, -
CN, -
(Ci-C6)alkyl, -(C3-C7)cycloalkyl, -(5- or 6-membered)heterocycle, -phenyl, -
naphthalenyl or
-(5- or 6-membered)heteroaryl.
In another embodiment, a is 2 and each R2 is independently -halo, -OH, -NH2, -
CN,
methyl, ethyl, n-propyl, iso-propyl, cyclopentyl, cyclohexyl, cycloheptyl, or
phenyl.
In another embodiment, a is 2 and each R2 is independently ¨halo.
In another embodiment, a is 1 and R2 is -halo, -OH, -NH2, -CN, -(C1-C6)alkyl, -
(C3-
C7)cycloalkyl, -(5- or 6-membered)heterocycle, -phenyl, -naphthalenyl or -(5-
or 6-
membered)heteroaryl.
In another embodiment, a is 1 and R2 is -halo, -OH, -NH2, -CN, methyl, ethyl,
n-propyl,
iso-propyl, cyclopentyl, cyclohexyl, cycloheptyl, or phenyl.
In another embodiment, a is 1 and R2 is -halo, optionally ¨F.
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In another embodiment, each Y is 0, A, B, C and D are each H, a is 1, and R2
is -halo,
optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, a is 1, and R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 1,
and R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 1,
and R2 is -halo, optionally ¨F.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, a is 1, and
R2 is -halo,
optionally ¨F.
In another embodiment, each Y is 0, A, B, C and D are each H, a is 0, and R3
is
methyl, ethyl, n-propyl or iso-propyl, each of which is substituted by an Rg
group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected Rg groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the phenyl group can be in the endo- or exo- conformation with
respect to the A-B
bridge, C and D are each H, a is 0, and R3 is methyl, ethyl, n-propyl or iso-
propyl, each of
which is substituted by an Rg group, or ¨H.
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In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 0,
and R3 is methyl, ethyl, n-propyl or iso-propyl, each of which is substituted
by an Rg group, or
¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstitutcd or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the cndo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 0,
and R3 is methyl, ethyl, n-propyl or iso-propyl, each of which is substituted
by an 1Z8 group, or
¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted and which bridge optionally contains -HC=CH- within the (C2-
C3)bridge;
wherein the heterocyclic ring that is fused to the phenyl group can be in the
endo- or exo-
conformation with respect to the A-B bridge, C and D are each H, a is 0, and
R3 is methyl,
ethyl, n-propyl or iso-propyl, each of which is substituted by an Rg group, or
¨H.
In another embodiment, each Y is 0, A, B, C and D are each H, a is 1, R2 is -
halo,
optionally ¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl, each of which
is substituted by
an Rg group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with 1, 2 or 3 independently selected R8 groups,
and which bridge
optionally contains -HC=CH- within the (C2-C6)bridge; wherein the heterocyclic
ring that is
fused to the phenyl group can be in the endo- or cxo- conformation with
respect to the A-B
bridge, C and D are each H, a is 1, R2 is -halo, optionally ¨F, and R3 is
methyl, ethyl, n-propyl
or iso-propyl, each of which is substituted by an Rg group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C6)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
within the (C2-C6)bridge; wherein the heterocyclic ring that is fused to the
phenyl group can be
in the endo- or exo- conformation with respect to the A-B bridge, C and D are
each H, a is 1,
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R2 is -halo, optionally ¨F, and R3 is methyl, ethyl, n-propyl or iso-propyl,
each of which is
substituted by an R8 group, or ¨H.
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
unsubstituted or substituted with an Rg group, and which bridge optionally
contains -HC=CH-
In another embodiment, each Y is 0, A-B together form a (C2-C3)bridge, which
is
15 In another embodiment, R12 is (Ci-C4)allCyl substituted with 1, 2 or 3
substituents
independently selected from -(C1-C12)cycloalkyl which is unsubstituted or
further substituted
with 1, 2 or 3 independently selected R8 groups, -(C3-C12)cycloalkoxy which is
unsubstituted
or further substituted with 1, 2 or 3 independently selected R8 groups, or -(3-
to 7-
membered)heterocycle which is unsubstituted or further substituted with 1, 2
or 3
In another embodiment, R12 is -(Ci-C4)alicyl substituted with 1, 2 or 3
substituents
independently selected from -0C(0)(C3-Cs)cycloalkyl, -NHS(0)2(C3-
Cs)cycloalkyl,
-N(VI)C(0)(C3-Cs)cycloalkyl, -NHC(0)W2, and -NHS(0)2W2.
In another embodiment, R12 is -(CI-C6)alicyl(=0)W2 or -(Ci-C6)alkyl-W2.
25 In another embodiment, R12 is -(Ci-C6)alkyl(=0)W2.
In another embodiment, R12 is -(Ci-C6)alkyl(=0)N(R6)2.
In another embodiment, R12 is -(Ci-C6)alkyl(=0)NH(R6).
In another embodiment, R12 is -(Ci-C6)alkyl(=0)NH(Ci-C6)alky1).
In another embodiment, R12 is -(C1-C6)alkyl(=0)NH[(3- to 7-
membered)heterocycle].
30 In another embodiment, R12 is -(Ci-C6)alkyl(=0)NRCI-C6)alkyli2.
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In another embodiment, Ri2 is -(Ci-C6)alkyl(=0)N(CH3)2.
In another embodiment, R12 is -(CI-C6)alkyl-W2.
In another embodiment, R12 is -(Ci-C6)alkyl-N(R6)2.
In another embodiment, R12 is -(CI-C6)alkyl-NH(R6).
In another embodiment, R12 is -(Ci-C6)alkyl-NH(CI-C6)alkyl).
In another embodiment, R12 is -(C1-C6)alkyl-NRCI-C6)alky112.
In another embodiment, Ri2 is -(Ci-C6)alkyl-N(C2H5)2.
In another embodiment, Z is a bond.
In another embodiment, Z is a bond and Ri is selected from:
Ri
( )k
(R8)1;
or
-(R8)p =
(R8)/(
(iii)
In another embodiment, Z is a bond, Ri is selected from formula (i), and m is
5.
In another embodiment, Z is a bond, R1 is selected from formula (i), m is 5,
and p is 0.
In another embodiment, Z is a bond, Ri is selected from formula (i), m is 5, p
is 0, and
R.11 is -H.
In another embodiment, Z is a bond, R1 is selected from formula (i), and m is
3.
In another embodiment, Z is a bond, R1 is selected from formula (i), m is 3,
and p is 1.
In another embodiment, Z is a bond, R1 is selected from formula (i), m is 3, p
is 1, and
R8 is -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, Z is a bond, R1 is selected from formula (i), m is 3,
R11 is -H, P
is 1, and Rs is -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, Z is a bond, R1 is selected from formula (iii), and j +
k = 1.
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In another embodiment, Z is a bond, R1 is selected from formula (iii), j + k =
1, and p is
0.
In another embodiment, Z is a bond and R1 is selected from:
(R8)p \ )n1 (R8)p \
( 0 )k
\ )rn , or õõ....- -..,
,
-,'
(R8)/(
(ia) (ib) (iii)
where m is an integer selected from 3, 4 or 5;
j is an integer selected from 1 or 2;
k is 0; and
each p is an integer independently selected from or 1.
In another embodiment, each p is 0.
In another embodiment, in formulas (ia) and (ib) p is 1 and R8 is selected
from -(C1-
C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 3, p is 1, and R8 is
selected from
-(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 5, p is 1, and R8 is
selected from
-(CI-C4)alkyl, optionally iso-propyl.
In another embodiment, in formulas (ia) and (ib) m is 3 and p is 0.
In another embodiment, in formulas (ia) and (ib) m is 5 and p is 0.
In another embodiment, in formula (iii) one p is 0, the other p is 1, and R8
is selected
from -(Ci-C4)alkyl, optionally iso-propyl.
In another embodiment, in formula (iii) j is 1 and each p is 0.
In another embodiment, in formula (iii) j is 1, one p is 0, the other p is 1,
and R8 is
selected from -(Ci-C4)alkyl, optionally iso-propyl.
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In another embodiment for the Heterocyclic-Substituted Piperidine Compounds of
Formula (IV):
each R2 is independently selected from:
(a) -halo, -OH, -NH2, -CN, or -NO2; or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(5-
or
6-membered)heterocycle, -phenyl, -naphthyl, or -(5- or 6-membered)heteroaryl,
each of which
is unsubstituted or substituted with 1, 2 or 3 R8 groups;
a is an integer from 0 to 2;
R3 is selected from:
(a) -H; or
(b) -(CI-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(C1-C6)alkyl, -0(C2-
C6)alkenyl, -0(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C5-C7)cycloalkenyl, -(C3-
C7)cycloalkoxy,
-(3- to 7-membered)heterocycle, -phenyl, -naphthyl, or -(5- to 10-
membered)heteroaryl, each
of which is unsubstituted or substituted with 1, 2 or 3 R8 groups; or
(c) -CH2CH2OH, -(CI-C6)alkyl(=0)WI, -C(0)0V1, -C(0)N(V1)2, or
C6)alkyl; or
(d) -(C1-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C7)cycloalkyl, -(C3-C7)cycloalkoxy, -(3- to 7-membered)heterocycle, -
phenyl, -
naphthyl, and -(5- to 10-membered)heteroaryl; or
(e) -(Ci-C3)alkyl substituted with a substituent selected from -N(R6)2,
-S(0)2NH2, -NHC(0)W1, -NHS(0)2W1, -C(0)0V1, and -C(0)N(V1)2;
each Y is independently selected from 0 or S;
R12 is selected from:
(a) -(C3-C12)cycloalkyl, -(C3-C12)cycloalkoxy, -(C6-C14)bicycloalkyl, -(Cg-
C20)tricycloalkyl, -(Cs-Cio)cycloalkenyl, -(C7-C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl, -
(Ci4)aryl, -(3- to 7-membered)heterocycle, each of which is unsubstituted or
substituted with 1,
2 or 3 R8 groups; or
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(b) -(CI-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-Ci2)cycloalkyl, -(C3-C12)cycloatkoxy, -(3- to 7-
membered)heterocycle, and -
(C14)aryl, each of which is unsubstituted or further substituted with 1, 2 or
3 R8 groups; or
(c) -C(0)0(C3-C8)cycloalkyl, -CH2CH2OH, -C(0)N(Vi)(C3-C8)cycloalkyl, or
-(Ci-C6)alkyl(=0)W2; or
(d) -(CI-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -0C(0)(C3-C8)cycloalkyl, -NHS(0)2(C3-C8)cycloalkyl, -N(VI)C(0)(C3-
C8)cycloalkyl, -
NHC(0)W2, and -NHS(0)2W2;
each W2 is independently selected from -(C1-C7)cycloalkyl, -0(Ci-C6)alkyl, -
(C3-
C7)cycloalkoxy, -CH2CH2OH, and -N(R6)2;
A and B are independently selected from -H, -N(R6)2, -(C3-C12)cycloalkyl, or -
(C1-
C6)alkyl each of which -(Ci-C6)alkyl is unsubstituted or substituted with -OH,
-S(0)2NH2, or
from 1 to 3 independently selected -halo, or A-B together form a (C2-
C6)bridge;
C is -H;
D is -H;
the dashed line in the piperidinc or bridged piperidine central ring is
absent;
Z is -[(Cl-Cio)alkylb-, wherein h is 0 or 1; or -[(Ci-Cio)alkyl]NR6C(=Y)-;
R1 is selected from:
(a) -H, -halo, -CN, -OH, -CH2OH, -CH2CH2OH, -NO2, -N(R6)2, -S(0)NH2, -
S(0)2NH2, -C(0)0V1, or -C(0)CN; or
(b) -(CI-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(C -C6)alkyl, -(C3-
C7)cycloalkoxy, -(C6-C14)bicycloalkyl, -(Cs-C20)tricycloalkyl, -(C5-
Cio)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(C8,-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle,
-(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with an R8 group,
or
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R
R11 11
(R8)p )f )k
)111 , , or __AO\
¨(R8)p ;
(ROp
(R8)E1,
(1) (ii) (iii)
or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl, each of
which is unsubstituted or substituted with an R8 group;
-Z-R1 is 3,3-diphenylpropyl- optionally substituted at the 3 carbon of the
propyl with -
CN, -C(0)N(R6)2, -C(0)0V1, or -tetrazolyl; or
-Z-R1 is -(C1-C4)alkyl substituted with tetrazolyl;
each R6 is independently selected from -H, -(C1-C6)alkyl, or -(C3-
C7)cycloaLkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
each R8 is independently selected from -(C1-C4)alkyl, -0(C1-C4)alkyl, -
C(halo)3,
-CH(halo)2, -CH2(halo), -CN, -OH, -halo, or -C(0)0R9;
each R9 is independently selected from -H, -(C1-C6)alkyl, -phenyl, or -benzyl;
R11 is selected from -H, -(C1-C4)alkyl, or -halo;
m is an integer from 1 to 7;
e and fare independently an integer from 0 to 5 provided that 2 < (e + 0 < 5;
j and k are independently an integer from 0 to 4 provided that 1 < (j + k) <
4;
each p is independently 0 or 1;
each V1 is independently selected from -H, -(C1-C6)alkyl, -(C3-C7)cycloalkyl, -
phenyl,
or -benzyl;
each W1 is independently selected from:
(a) -H, -C6)alkyl, -(C3-C7)cycloalkyl, -0(C1-C6)alkyl, -(C3-
C7)cycloalkoxy,
-CH2CH2OH, -N(R6)2; or
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(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(C1-C6)alkyl; and
each halo is independently selected from -F, -Cl, -Br, or -I;
provided that when h is 0, R1 is not -halo or -NO2.
In another embodiment for the Heterocyclic-Substituted Piperidine Compounds of
Formula (IV):
each R2 is independently selected from:
(a) -halo, -CN, -NO2, -0T3, -C(0)T3, -C(0)0T3, -C(0)N(T1)(T2), -S(0)3H,
-S(0)2T3, -S(0)2N(Ti)(T2), -N(Ti)(T2), -N(T3)C(0)T3, -N(T3)C(0)N(T1)(T2), -
N(T3)S(0)2T3,
or -N(T3)S(0)2N(T O(T2); or
(b) -(C1-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C6-
C 14)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-C io)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl, -(5- or 6-membered)heterocycle, or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3 R8
groups; or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- or 6-membered)heteroaryl, each of
which is unsubstituted or substituted with 1, 2 or 3 R7 groups;
a is an integer from 0 to 2;
R3 is selected from:
(a) -H; or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(CI-C6)alkyl, -0(C2-
C6)alkenyl, -0(C2-C6)alkynyl, -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-
C7)cycloalkoxy,
-(C6-C14)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-C10)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -
(Cs-C20)tricycloalkenyl, -(3- to 7-membered)hetcrocycle, or -(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with 1, 2 or 3 R8
groups; or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl, each of
which is unsubstituted or substituted with 1, 2 or 3 R7 groups; or
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(d) -(C -C6)alkyl(=0)W1, -(C1-C6)alkyl(=NH)Wi, -C(0)0V1, -C(0)N(V1)2,
-S(0)2N(V1)2, or -S(0)2(CI-C6)alkyl; or
(e) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C7)cycloalkyl, -(C3-C7)cycloalkenyl, -(C3-C7)cycloalkoxy, -(C6-
C14)bicyeloalkyl, -
(C8-C20)tricyc loalkyl, -(C5-C io)cycloalkenyl, -(C7-C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl,
-(3- to 7-membered)heterocycle, -(7- to 10-membered)bicycloheterocycle, -
phenyl, -naphthyl, -
(C14)aryl, or -(5- to 10-membered)heteroaryl; or
(0 -(C1-C3)alkyl substituted with a substituent selected from -N(R6)2,
-S(0)2N(V1)2, -N(R9)C(0)Wi, -N(R9)S(0)2W1, and -C(0)N(V1)2;
each Y is independently selected from 0 or S;
R12 is selected from:
(a) -(C3-C12)cycloalkyl, -(C3-C12)cycloalkoxy, -(C6-Ci4)bicycloalkyl, -(C8-
C20)tricycloalkyl, -(C5-Cio)cycloalkenyl, -(C7-C14)bicycloalkenyl, -(C8-
C20)tricycloalkenyl, -(3-
to 7-membered)heterocycle, each of which is unsubstituted or substituted with
1, 2 or 3 Rg
groups; or
(b) -(C14)aryl which is unsubstituted or substituted with 1, 2 or 3 R7 groups;
or
(c) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -(C3-C12)cycloalkyl which is unsubstituted or further substituted with 1,
2 or 3 R8 groups,
-(C3-C12)cycloalkoxy which is unsubstituted or further substituted with 1, 2
or 3 R8 groups, -
(3- to 7-membered)heterocycle which is unsubstituted or further substituted
with 1, 2 or 3 Rg
groups, or -(C14)aryl which is unsubstituted or further substituted with 1, 2
or 3 R7 groups; or
(d) -C(0)0(C3-C8)cycloalkyl, -CH2CH2OH, -C(0)N(VO(C3-C8)cycloalkyl, or
-(C1-C6)alkyl(=0)W2; or
(e) -(Ci-C4)alkyl substituted with 1, 2 or 3 substituents independently
selected
from -0C(0)(C3-C8)cycloalkyl, -NHS(0)2(C3-C8)cycloalkyl, -N(VI)C(0)(C3-
C8)cycloalkyl, -
NHC(0)W2, and -NHS(0)2W2;
each W2 is independently selected from -(C3-C7)cycloalkyl, -0(CI-C6)alkyl, -
(C3-
C7)cycloalkoxy, -CH2CH2OH, and -N(R6)2;
A and B are independently selected from:
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(a) -H, -CN, -C(0)0T3, -C(0)N(T)1(1.2), -(C3-C12)cycloalkyl, -(C3-
C12)cycloalkoxy, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each of which -
(C1-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
substituents selected from -OH, -S(0)2NH2, -N(R6)2, =NR6, -C(0)0T3, -
C(0)N(R6)2,
-N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from 1 to 3 independently
selected
-halo, or
(b) A-B together form a (C2-C6)bridge, which is unsubstituted or optionally
substituted with from 1 to 3 -OH or optionally contains -HC=CH- within the (C2-
C6)bridge, or
(c) A-B together form a -CH2-N(R,a)-CH2- bridge, a
Rb Rb
C=0 0=S=0
-CH2-N-CH2- bridge, or a -CH2-N-CH2- bridge;
Ra is selected from -H, -(CI-C6)alkyl, -(C3-C7)cycloalkyl, -CH2-C(0)-Re, -
(CH2)-C(0)-
OK, -(CH2)-C(0)-N(K)2, -(CH2)2-0-Re, -(CH2)2-S(0)2-N(Rc)2, Rc, or -(CH2)2-
N(R)S(0)2-R;
Rb is selected from:
(a) -H, -(C1-C6)alkyl, -(C3-C7)cycloalkyl, -(3- to 7-membered)heterocycle,
-N(R)2, -N(Rc)-(C3-C7)cycloalkyl, or -N(Rc)-(3- to 7-membered)heterocycle,
(b) -phenyl, -naphthyl, or-(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 R7 groups, or
(c) -N(L)-phenyl, -N(Rc)-naphthyl, -N(Rc)-(C14)aryl, or -N(Re)-(5- to 10-
membered)heteroaryl, each of which is unsubstituted or substituted with 1, 2
or 3 R7 groups;
each Rc is independently selected from -H or -(Ci-C4)alkyl;
C is selected from -H, -halo, -CN, -0T3, -C(0)0T3, -C(0)N(T)1(T2), -(C3-
C12)cycloalkyl, -(C3-C12)cycloalkoxy, -N(R6)2, -N(R6)C(0)R9, -NR6S02N(R6)2,
-NR6-C(=NR6)N(R6)2, -(CI-C6)alkyl, -(C2-C6)alkenyl, or -(C2-C6)alkynyl, each
of which -(C1-
C6)alkyl, -(C2-C6)alkenyl or -(C2-C6)alkynyl is unsubstituted or substituted
with 1 or 2
substituents selected from -OH, -S(0)2NH2, -N(R6)2, =NR6, -C(0)0T3, -
C(0)N(R6)2,
-N(R6)C(0)R9 and -(5- or 6-membered)heterocycle or from 1 to 3 independently
selected
-halo;
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the dashed line in the piperidine or bridged piperidine central ring denotes
the presence
or absence of a bond, and when the dashed line denotes the presence of a bond
then D is
absent, otherwise D is:
(a) -H, -CN, -C(0)0T3, or -C(0)N(T1)(T2); or
(b) -(CI-C10)alkyl which is unsubstituted or substituted with 1, 2 or 3 R8
groups
and, optionally, in which any D group carbon atom except the carbon atom
bonded directly to
the piperidine or bridged piperidine central ring is independently replaced by
0 or S; or
(c) -phenyl, -naphthyl, or -(5- or 6-membered)heteroaryl, each of which is
unsubstituted or substituted with 1, 2 or 3 R7 groups;
Z is -[(C1-Cio)alkyl]h-, wherein his 0 or 1; or ¨[(CI-Cio)alkyl]NR6g=Y)-;
R1 is selected from:
(a) -H, -halo, -CN, -OH, -CH2OH, -CH2CH2OH, -NO2, -N(R6)2, -S(0)NH2, -
S(0)2NH2, -C(0)0V1, or -C(0)CN; or
(b) -(Ci-C6)alkyl, -(C2-C6)alkenyl, -(C2-C6)alkynyl, -0(Ci-C6)alkyl, -(C3-
C7)eyeloalkoxy, -(C6-C14)bicycloalkyl, -(C8-C20)tricycloalkyl, -(C5-
C10)cycloalkenyl, -(C7-
C14)bicycloalkenyl, -(Cs-C20)tricycloalkenyl, -(3- to 7-membered)heterocycle, -
(7- to 10-
membered)bicycloheterocycle, each of which is unsubstituted or substituted
with an R8 group,
or
R11
R11
(R8)p )k
)m ,
, or
(R8)(..¨
(R8);
(ii) (iii)
or
(c) -phenyl, -naphthyl, -(C14)aryl, or -(5- to 10-membered)heteroaryl, each of
which is unsubstituted or substituted with an R7 group;
-Z-R1 is 3,3-diphenylpropyl- optionally substituted at the 3 carbon of the
propyl with -
CN, -C(0)N(R6)2, -C(0)0V1, or -tetrazolyl; or
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-Z-R1 is -(Ci-C4)alkyl substituted with tetrazolyl;
each R6 is independently selected from -H, -(Ci-C6)alkyl, or -(C3-
C7)cycloalkyl, or two
R6 groups attached to the same nitrogen atom can form a 5- to 8-membered ring,
the number of
atoms in the ring including the nitrogen atom, in which one of the ring carbon
atoms is
optionally replaced by 0 or S;
each R7 is independently selected from -(Ci-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR9, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, -halo, -N3, -NO2, -CH=NR9,
-NR9OH, -
C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R8 is independently selected from -(Ci-C4)alkyl, -(C2-C6)alkenyl, -(C2-
C6)alkynyl,
-0R9, -SR9, -C(halo)3, -CH(halo)2, -CH2(halo), -CN, oxo, =S, -halo, -N3, -NO2,
-CH=NR,,
-C(0)0R9, -0C(0)R9, -0C(0)0R9, -S(0)R9, or -S(0)2R9;
each R9 is independently selected from -H, -(Ci-C6)alkyl, -(C2-C6)alkenyl, -
(C2-
C6)alkynyl, -(C3-C8)cycloalkyl, -(C5-C8)cycloalkenyl, -phenyl, -benzyl, -(3-
to 6-
membered)heterocycle, -C(halo)3, -CH(halo)2, or -CH2(halo);
if h is 0, R11 is selected from -H or -(Ci-C4)alkyl which is is unsubstituted
or substituted
with -OH, -(C1-C4)al-koxY, -N(R6)2, -C(0)0R9, or -C(0)N(R6)2;
if h is 1, R11 is selected from -H, -OH, -halo, or -(Ci-C4)alkyl which is is
unsubstituted
or substituted with -OH, -(Ci-C4)alkoxy, -N(R6)2, -C(0)0R9, or -C(0)N(R6)2;
m is an integer from 1 to 7;
e and fare independently an integer from 0 to 5 provided that 2 < (e + 0 < 5;
j and k are independently an integer from 0 to 4 provided that 1 < (j + k) <
4;
each p is independently 0 or 1;
each T1, T2, and T3 is independently -H or -(Ci-C10)alkyl which is
unsubstituted or
substituted with 1, 2 or 3 R8 groups and, optionally, in which any carbon atom
is independently
replaced by 0 or S, or T1 and T2 together can form a 5- to 8-membered ring
where the number
of atoms in the ring includes the nitrogen atom to which T1 and 12 are bonded,
said 5- to 8-
membered ring is unsubstituted or substituted with 1, 2 or 3 R8 groups and,
optionally, any
carbon atom in said 5- to 8-membered ring is independently replaced by 0 or S;
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each VI is independently selected from -H, -(Ci-C6)alkyl, -(C3-C7)eycloalkyl, -
phenyl,
or -benzyl;
each WI is independently selected from:
(a) -H, -(CI-C6)alkyl, -(C3-C7)cycloalkyl, -0(CI-C6)alkyl, -(C3-
C7)cycloalkoxy,
-CH2CH2OH, -N(R6)2; or
(b) -(5- or 6-membered)heteroaryl optionally substituted with 1, 2 or 3
independently selected -(Ci-C6)alkyl; and
each halo is independently selected from -F, -Cl, -Br, or -1;
provided that when h is 0, R1 is not -halo or -NO2.
4.5 Definitions
As used in connection with the Heterocyclic-Substituted Piperidine Compounds
herein,
the terms used herein having following meaning:
"-(Ci-Cio)alkyl" means a straight chain or branched non-cyclic hydrocarbon
having
from 1 to 10 carbon atoms. Representative straight chain -(C1-C10)alkyls
include -methyl,
-ethyl, -n-propyl, -n-butyl, -n-pentyl, -n-hexyl, -n-heptyl, -n-octyl, -n-
nonyl, and -n-decyl. A
branched alkyl means that one or more straight chain -(Ci-C8)alkyl groups,
such as methyl,
ethyl or propyl, replace one or both hydrogens in a -CH2- group of a straight
chain alkyl. A
branched non-cyclic hydrocarbon means that one or more straight chain -(CI-
Cio)alkyl groups,
such as methyl, ethyl or propyl, replace one or both hydrogens in a -CH2-
group of a straight
chain non-cyclic hydrocarbon. Representative branched -(Ci-C10)alkyls include -
iso-propyl,
-sec-butyl, -iso-butyl, -tert-butyl, -iso-pentyl, -neopentyl, l-methylbutyl, 2-
methylbutyl,
3-methylbutyl, 1,1-dimethylpropyl, 1,2-dimethylpropyl, 1-methylpentyl, 2-
methylpentyl,
3-methylpentyl, 4-methylpentyl, 1-ethylbutyl, 2-ethylbutyl, 3-ethylbutyl, 1,1-
dimethylbutyl,
1,2-dimethylbutyl, 1,3-dimethylbutyl, 2,2-dimethylbutyl, 2,3-dimethylbutyl,
3,3-dimethylbutyl, 1-methylhexyl, 2-methylhexyl, 3-methylhexyl, 4-methylhexyl,
5-
methylhexyl, 1,2-dimethylpentyl, 1,3-dimethylpentyl, 1,2-dimethylhexyl, 1,3-
dimethylhexyl,
3,3-dimethylhexyl, 1,2-dimethylheptyl, 1,3-dimethylheptyl, and 3,3-
dimethylheptyl.
"-(Ci-C6)alkyl" means a straight chain or branched non-cyclic hydrocarbon
having
from 1 to 6 carbon atoms. Representative straight chain -(CI-C6)alkyls include
-methyl, -ethyl,
-n-propyl, -n-butyl, -n-pentyl, and -n-hexyl. Representative branched -(Ci-
C6)alkyls include
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-iso-propyl, -sec-butyl, -iso-butyl, -tert-butyl, -iso-pentyl, -neopentyl, 1-
methylbutyl,
2-methylbutyl, 3-methylbutyl, 1,1-dimethylpropyl, 1,2-dimethylpropyl, 1-
methylpentyl,
2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 1-ethylbutyl, 2-ethylbutyl, 3-
ethylbutyl,
1,1-dimethtylbutyl, 1,2-dimethylbutyl, 1,3-dimethylbutyl, 2,2-dimethylbutyl,
2,3-dimethylbutyl, and 3,3-dimethylbutyl.
"-(Ci-C4)alkyl" means a straight chain or branched non-cyclic hydrocarbon
having
from 1 to 4 carbon atoms. Representative straight chain -(C1-C4alkyls include -
methyl, -ethyl,
-n-propyl, and -n-butyl. Representative branched -(Ci-C4)alkyls include -iso-
propyl, -sec-
butyl, -iso-butyl, and -tert-butyl.
"-(Ci-C1)alkyl" means a straight chain or branched non-cyclic hydrocarbon
having
from 1 to 3 carbon atoms. Representative straight chain -(C1-C1)alkyls include
-methyl, -ethyl,
and -n-propyl. Representative branched -(Ci-C3)alkyls include -iso-propyl.
"-(Ci-C2)alkyl" means a straight chain non-cyclic hydrocarbon having 1 or 2
carbon
atoms. Representative straight chain -(Ci-C2)alkyls include -methyl and -
ethyl.
"-(C2-Cio)alkcnyl" means a straight chain or branched non-cyclic hydrocarbon
having
from 2 to 10 carbon atoms and including at least one carbon-carbon double
bond. A branched
alkenyl means that one or more straight chain -(C1-Qalkyl groups, such as
methyl, ethyl or
propyl, replace one or both hydrogens in a -CH2- or -CH= group of a straight
chain alkenyl.
Representative straight chain and branched (C2-Cio)alkcnyls include -vinyl, -
allyl, -1-butenyl, -
2-butenyl, -iso-butylenyl, -1-pentenyl, -2-pentenyl, -3-methyl-l-butenyl, -2-
methyl-2-butenyl, -
2,3-dimethy1-2-butenyl, -1-hexenyl, -2-hexenyl, -3-hexenyl, -1-heptenyl, -2-
heptenyl, -3-
heptenyl, -1-octenyl, -2-octenyl, -3-octenyl, -1-nonenyl, -2-nonenyl, -3-
nonenyl, -1-decenyl, -
2-decenyl, -3-decenyl, and the like.
"-(C2-C6)alkenyl" means a straight chain or branched non-cyclic hydrocarbon
having
from 2 to 6 carbon atoms and including at least one carbon-carbon double bond.
Representative straight chain and branched (C2-C6)alkenyls include -vinyl, -
allyl, -1-butenyl, -
2-butenyl, -iso-butylenyl, -1-pentenyl, -2-pentenyl, -3-methyl-l-butenyl, -2-
methyl-2-butenyl, -
2,3-dimethy1-2-butenyl, -1-hexenyl, 2-hexenyl, 3-hexenyl, and the like.
"-(C2-Cio)alkynyl" means a straight chain or branched non-cyclic hydrocarbon
having
from 2 to 10 carbon atoms and including at least one carbon-carbon triple
bond. A branched
alkynyl means that one or more straight chain -(Ci-C8)alkyl groups, such as
methyl, ethyl or
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propyl, replace one or both hydrogens in a -CH2- group of a straight chain
alkynyl.
Representative straight chain and branched -(C2-C1o)alkynyls include -
acetylenyl, -propynyl, -
1-butynyl, -2-butynyl, -1-pentynyl, -2-pentynyl, -3-methyl-1-butynyl, -4-
pentynyl, -1-hexynyl,
-2-hexynyl, -5-hexynyl, -1-heptynyl, -2-heptynyl, -6-heptynyl, -1-octynyl, -2-
octynyl, -7-
octynyl, -1-nonynyl, -2-nonynyl, -8-nonynyl, -1-decynyl, -2-decynyl, -9-
decynyl, and the like.
"-(C2-C6)alkynyl" means a straight chain or branched non-cyclic hydrocarbon
having
from 2 to 6 carbon atoms and including at least one carbon-carbon triple bond.
Representative
straight chain and branched (C2-C6)alkynyls include -acetylenyl, -propynyl, -1-
butynyl, -
2-butynyl, -1-pentynyl, -2-pentynyl, -3-methyl-1-butynyl, -4-pentynyl, -1-
hexynyl, -2-hexynyl,
-5-hcxynyl, and the like.
"-(Ci-C6)alkoxy" means a straight chain or branched non cyclic hydrocarbon
having
one or more ether groups and from 1 to 6 carbon atoms. Representative straight
chain and
branched -(CI-C6)alkoxys include methoxy, ethoxy, methoxymethyl, 2-
methoxyethyl,
5-methoxypentyl, 3-ethoxybutyl, and the like.
"-(C3-Ci2)cycloalkyl" means a saturated monocyclic hydrocarbon having from 3
to 12
carbon atoms. Representative (C3-C12)cycloalkyls are -cyclopropyl, -
cyclobutyl, -cyclopentyl,
-cyclohexyl, -cycloheptyl, -cyclooctyl, -cyclononyl, -cyclodecyl, and -
cyclododecyl.
"-(C4-C8)cycloalkyl" or "4- to 8-member cycloalkyl ring" means a saturated
monocyclic hydrocarbon having from 4 to 8 carbon atoms unless, if X is
-C(R4)(R5)-N(R6)-C(R41)(R5')- and R4 and R4' form a 4- to 8-member cycloalkyl
ring, the 4- to
8-member cycloalkyl ring includes the intervening nitrogen atom (to which R6
is attached) and
the number of atoms in the ring includes the intervening nitrogen atom.
Representative -(C4-
cycloalkyls are -cyclobutyl, cyclopentyl, cyclohexyl, -cycloheptyl, and -
cyclooctyl.
"-(C3-C8)cycloalkyl" means a saturated monocyclic hydrocarbon having from 3 to
8
carbon atoms. Representative (C3-C8)cycloalkyls include -cyclopropyl, -
cyclobutyl,
-cyclopentyl, -cyclohexyl, -cycloheptyl, and -cyclooctyl.
"-(C3-C7)cycloalkyl" means a saturated monocyclic hydrocarbon having from 3 to
7
carbon atoms. Representative (C3-C7)cycloalkyls include cyclopropyl, -
cyclobutyl,
-cyclopentyl, -cyclohexyl, -and cycloheptyl.
"-(C6-C14)bicycloalkyl" means a bi-cyclic hydrocarbon ring system having from
6 to 14
carbon atoms and at least one saturated cyclic alkyl ring. Representative -(C6-
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C14bicycloalkyls include -indanyl, -norbornyl, -1,2,3,4-
tetrahydronaphthalenyl,
-5,6,7,8-tetrahydronaphthalenyl, -perhydronaphthalenyl, and the like.
"-(C8-C2o)tricycloalkyl" means a tri-cyclic hydrocarbon ring system having
from 8 to
20 carbon atoms and at least one saturated cyclic alkyl ring. Representative -
(C8-
C20)tricycloalkyls include -pyrenyl, -adamantyl, -1,2,3,4-
tetrahydroanthracenyl,
-perhydroanthracenyl -aceanthrenyl, -1,2,3,4-tetrahydropenanthrenyl,
-5,6,7,8-tetrahydrophenanthrenyl, -perhydrophenanthrenyl, tetradecahydro-1H-
cyclohepta[a]naphthalenyl, tetradecahydro-IH-cycloocta[e]indenyl,
tetradecahydro-1H-
cyclohepta[e]azulenyl, hexadecahydrocycloocta[b]naphthalenyl,
hexadecahydrocyclohepta[a]heptalenyl, tricyclo-pentadecanyl, tricyclo-
octadecanyl, tricyclo-
nonadccanyl, tricyclo-icosanyl, and the like.
"-(C5-C12)cycloalkenyl" means a cyclic non-aromatic hydrocarbon having at
least one
carbon-carbon double bond in the cyclic system and from 5 to 12 carbon atoms.
Representative (C5-C12)cycloalkenyls include -cyclopentenyl, -
cyclopentadienyl,
-cyclohexenyl, -cyclohexadieny1,-cycloheptenyl, -cycloheptadienyl, -
cycloheptatrienyl,
-cyclooctenyl, -cyclooctadienyl, -cyclooctatrienyl, -cyclooctatetraenyl, -
cyclononenyl,
-cyclononadienyl, -cyclodecenyl, -cyclodecadienyl, -cyclododecadienyl, -
norbornenyl, and the
like.
"-(C5-Cio)cycloa1kenyl" means a cyclic non-aromatic hydrocarbon having at
least one
carbon-carbon double bond in the cyclic system and from 5 to 10 carbon atoms.
Representative (C5-C1o)cycloalkenyls include -cyclopentenyl, -
cyclopentadienyl,
-cyclohexenyl, -cyclohexadienyl,-cycloheptenyl, -cycloheptadienyl, -
cycloheptatrienyl,
-cyclooctenyl, -cyclooctadienyl, -cyclooctatrienyl, -cyclooctatetraenyl, -
cyclononenyi,
-cyclononadienyl, -cyclodecenyl, -cyclodecadienyl -norbornenyl, and the like.
"-(C5-C8)cycloalkenyl" means a cyclic non-aromatic hydrocarbon having at least
one
carbon-carbon double bond in the cyclic system and from 5 to 8 carbon atoms.
Representative
(C5-C8)cycloalkenyls include -cyclopentcnyl, -cyclopcntadienyl, -cyclohexenyl,
-
cyclohexadienyl, -cycloheptenyl, -cycloheptadienyl, -cycloheptatrienyl, -
cyclooctenyl, -
cyclooctadienyl, -cyclooctatrienyl, -cyclooctatetraenyl, -norbomenyl, and the
like.
"-(C5-C7)cycloalkenyl" means a cyclic non-aromatic hydrocarbon having at least
one
carbon-carbon double bond in the cyclic system and from 5 to 7 carbon atoms.
Representative
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(C5-C7)cycloalkenyls include -cyclopentenyl, -cyclopentadienyl, -cyclohexenyl,
-
cyclohexadienyl, -cycloheptenyl, -cycloheptadienyl, -cycloheptatrienyl, and
the like.
"-(C7-C14)bicycloalkenyl" means a bi-cyclic hydrocarbon ring system having at
least
one carbon-carbon double bond in each ring and from 7 to 14 carbon atoms.
Representative -
(C7-Cia)b cycloalkenyls include -bicyclo[3.2.0]hept-2-eneyl, -indenyl, -
pentalenyl,
-naphthalenyl, -azulenyl, -heptalenyl, -1,2,7,8-tetrahydronaphthalenyl, and
the like.
"-(Cs-C20)tricycloalkenyl" means a tri-cyclic hydrocarbon ring system having
at least
one carbon-carbon double bond in each ring and from 8 to 20 carbon atoms.
Representative
-(Cs-C20)tricycloalkenyls include -anthraccnyl, -phcnanthrenyl, -phcnalenyl, -
accnaphthalcnyl,
as-indacenyl, s-indacenyl, 2,3,6,7,8,9,10,11-octahydro-1H-cycloocta[e]indenyl,
2,3,4,7,8,9,10,11-octahydro-1H-cyclohepta[a]naphthalenyl, 8,9,10,11-tetrahydro-
7H-
cyclohepta[a]naphthalenyl, 2,3,4,5,6,7,8,9,10,11,12,13-dodecahydro-1H-
cyclohepta[a]heptalenyl, 1,2,3,4,5,6,7,8,9,10,11,12,13,14-tetradecahydro-
dicyclohepta[a,c]cyclooctenyl, IH-
and the like.
"-(3- to 7-membered)heterocycle" or "-(3- to 7-membered)heterocyclo" means a 3-
to
7-membered monocyclic heterocyclic ring which is either saturated, unsaturated
non-aromatic,
or aromatic. A 3-membered heterocycle can contain up to 1 heteroatom, a 4-
membered
heterocycle can contain up to 2 heteroatoms, a 5-membered heterocycle can
contain up to 4
heteroatoms, a 6-membered heterocycle can contain up to 4 heteroatoms, and a 7-
membered
heterocycle can contain up to 5 heteroatoms. Each heteroatom is independently
selected from
nitrogen, which can be quaternized; oxygen; and sulfur, including sulfoxide
and sulfone. The -
(3- to 7-membered)heterocycle can be attached via a nitrogen or carbon atom.
Representative
-(3- to 7-membered)heterocycles include pyridyl, furyl, thiophenyl, pyrrolyl,
oxazolyl,
imidazolyl, thiazolidinyl, thiadiazolyl, thiazolyl, isoxazolyl, pyrazolyl,
isothiazolyl,
pyridazinyl, pyrimidinyl, triazinyl, morpholinyl, pyrrolidinonyl,
pyrrolidinyl, piperidinyl,
piperazinyl, 2,3-dihydrofuranyl, dihydropyranyl, hydantoinyl, valerolactamyl,
oxiranyl,
oxetanyl, tetrahydrofuranyl, tetrahydropyranyl, dihydropyridinyl,
tetrahydropyridinyl,
tetrahydropyrimidinyl, tetrahydrothiophenyl, tetrahydrothiopyranyl, and the
like.
"-(3- to 6-membered)heterocycle" or "-(3- to 6-membered)heterocyclo" means a 3-
to
6-membered monocyclic heterocyclic ring which is either saturated, unsaturated
non-aromatic,
or aromatic. A 3-membered heterocycle can contain up to 1 heteroatom, a 4-
membered
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heterocycle can contain up to 2 heteroatoms, a 5-membered heterocycle can
contain up to 4
heteroatoms, and a 6-membered heterocycle can contain up to 4 heteroatoms.
Each heteroatom
is independently selected from nitrogen, which can be quaternized; oxygen; and
sulfur,
including sulfoxide and sulfone. The -(3- to 6-membered)heterocycle can be
attached via a
nitrogen or carbon atom. Representative -(3- to 6-membered)heterocycles
include pyridyl,
furyl, thiophenyl, pyrrolyl, oxazolyl, imidazolyl, thiazolidinyl,
thiadiazolyl, thiazolyl,
isoxazolyl, pyrazolyl, isothiazolyl, pyridazinyl, pyrimidinyl, triazinyl,
morpholinyl,
pyrrolidinonyl, pyrrolidinyl, piperidinyl, piperazinyl, 2,3-dihydrofuranyl,
dihydropyranyl,
hydantoinyl, valerolactamyl, oxiranyl, oxetanyl, tetrahydrofuranyl,
tetrahydropyranyl,
dihydropyridinyl, tetrahydropyridinyl, tetrahydropyrimidinyl,
tetrahydrothiophenyl,
tetrahydrothiopyranyl, and the like.
"-(5- or 6-membered)heterocycle" or "-(5- or 6-membered)heterocyclo" means a 5-
or
6-membered monocyclic heterocyclic ring which is either saturated, unsaturated
non-aromatic,
or aromatic. A 5-membered heterocycle can contain up to 4 heteroatoms and a 6-
membered
heterocycle can contain up to 4 heteroatoms. Each heteroatom is independently
selected from
nitrogen, which can be quaternized; oxygen; and sulfur, including sulfoxide
and sulfone. The -
(5- or 6-membered)heterocycle can be attached via a nitrogen or carbon atom.
Representative
-(5- or 6-membered)heterocycles include pyridyl, furyl, thiophenyl, pyrrolyl,
oxazolyl,
imidazolyl, thiazolidinyl, thiadiazolyl, thiazolyl, isoxazolyl, pyrazolyl,
isothiazolyl,
pyridazinyl, pyrimidinyl, triazinyl, morpholinyl, pyrrolidinonyl,
pyrrolidinyl, piperidinyl,
piperazinyl, 2,3-dihydrofuranyl, dihydropyranyl, hydantoinyl, valerolactamyl,
tetrahydrofuranyl, tetrahydropyranyl, dihydropyridinyl, tetrahydropyridinyl,
tetrahydropyrimidinyl, tetrahydrothiophenyl, tetrahydrothiopyranyl, and the
like.
"-(3- to 5-membered)heterocycle" or "-(3- to 5-membered)heterocyclo" means a 3-
to
5-membered monocyclic heterocyclic ring which is either saturated, unsaturated
non-aromatic,
or aromatic. A 3-membered heterocycle can contain up to 1 heteroatom, a 4-
membered
heterocycle can contain up to 2 heteroatoms, and a 5-membered heterocycle can
contain up to
4 heteroatoms. Each heteroatom is independently selected from nitrogen, which
can be
quaternized; oxygen; and sulfur, including sulfoxide and sulfone. The -(3- to
5-
membered)heterocycle can be attached via a nitrogen or carbon atom.
Representative -(3- to 5-
membered)heterocycles include furyl, thiophenyl, pyrrolyl, oxazolyl,
imidazolyl, thiazolidinyl,
thiadiazolyl, thiazolyl, isoxazolyl, pyrazolyl, isothiazolyl, triazinyl,
pyrrolidinonyl,
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pyrrolidinyl, 2,3-dihydrofuranyl, hydantoinyl, oxiranyl, oxetanyl,
tetrahydrofuranyl,
tetrahydrothiophenyl, pyrazolidinyl, and the like.
"-(7- to 10-membered)bicycloheterocycle" or "-(7- to 10-
membered)bicycloheterocyclo" means a 7- to 10-membered bicyclic, heterocyclic
ring which
is either saturated, unsaturated non-aromatic, or aromatic. A -(7- to 10-
membered)bicycloheterocycle contains from 1 to 4 heteroatoms independently
selected from
nitrogen, which can be quatemized; oxygen; and sulfur, including sulfoxide and
sulfone. The -
(7- to 10-membered)bicycloheterocycle can be attached via a nitrogen or carbon
atom.
Representative -(7- to 10-membered)bicycloheterocycles include -quinolinyl, -
isoquinolinyl, -
chromonyl, -coumarinyl, -indolyl, -indolizinyl, -benzo[b]furanyl, -
benzo[b]thiophenyl, -
indazolyl, -purinyl, -4H-quinolizinyl, -isoquinolyl, -quinolyl, -phthalazinyl,
-naphthyridinyl,
-carbazolyl, -13-carbolinyl, -indolinyl, -isoindolinyl, -1,2,3,4-
tetrahydroquinolinyl, -1,2,3,4-
tetrahydroisoquinolinyl, pyrrolopyrrolyl, and the like.
"-(C1-C12)cycloalkoxy" means a saturated monocyclic hydrocarbon having from 3
to 12
carbon atoms where at least one of the carbon atoms is replaced by an oxygen
atom.
Representative (C3-C12)cycloalkoxy are -oxiranyl, -oxetanyl, -
tetrahydrofuranyl, -tetrahydro-
2H-pyranyl, -1,4-dioxanyl, -oxepanyl, -1,4-dioxepanyl, -oxocanyl, -1,5-
dioxocanyl, -1,3,5-
trioxocanyl, -oxonanyl, -1,5-dioxonanyl, -1,4,7-trioxonanyl, -
oxacyclododecanyl, -1,7-
dioxacyclododecanyl, and -1,5,9-trioxacyclododecanyl.
"-(C3-C7)cycloalkoxy " means a saturated monocyclic hydrocarbon having from 3
to 7
carbon atoms where at least one of the carbon atoms is replaced by an oxygen
atom.
Representative (C3-C7)cycloalkoxy are -oxiranyl, -oxetanyl, -
tetrahydrofuranyl, -tetrahydro-
2H-pyranyl, -1,4-dioxanyl, -oxepanyl, and -1,4-dioxepanyl.
"-(C14)aryl" means a 14-membered aromatic carbocyclic moiety such as -anthryl
or
-phenanthryl.
"-(5- to 10-membered)heteroaryl" means an aromatic heterocycle ring of 5 to 10
members, including both mono- and bicyclic ring systems, where at least one
carbon atom of
one or both of the rings is replaced with a heteroatom independently selected
from nitrogen,
oxygen, and sulfur, or at least two carbon atoms of one or both of the rings
are replaced with a
heteroatom independently selected from nitrogen, oxygen, and sulfur. In one
embodiment, one
of the -(5- to 10-membered)heteroaryl's rings contain at least one carbon
atom. In another
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embodiment, both of the -(5- to 10-membered)heteroaryl's rings contain at
least one carbon
atom. Representative -(5- to 10-membered)heteroaryls include pyridyl, furyl,
benzofuranyl,
thiophenyl, benzothiophenyl, quinolinyl, isoquinolinyl, pyrrolyl, indolyl,
oxazolyl,
benzoxazolyl, imidazolyl, benzimidazolyl, thiazolyl, benzothiazolyl,
isoxazolyl, oxadiazolinyl,
pyrazolyl, isothiazolyl, pyridazinyl, pyrimidyl, pyrimidinyl, pyrazinyl,
thiadiazolyl, triazinyl,
thienyl, cinnolinyl, phthalazinyl, and quinazolinyl.
"-(5- or 6-membered)heteroaryl" means a monocyclic aromatic heterocycle ring
of 5 or
6 members where at least one carbon atom is replaced with a heteroatom
independently
selected from nitrogen, oxygen, and sulfur. In one embodiment, one of the -(5-
or 6-
membered)heteroaryl's ring contains at least one carbon atom. Representative -
(5- or 6-
membered)heteroaryls include pyridyl, furyl, pyrrolyl, oxazolyl, imidazolyl,
thiazolyl,
isoxazolyl, 1,2,3-oxadiazolyl, 1,3,4-oxadiazolyl, 1,2,5-oxadiazolyl, 1,2,3-
triazolyl, pyrazolyl,
isothiazolyl, pyridazinyl, pyrimidyl, pyrazinyl, 1,2,3-thiadiazolyl, 1,3,4-
thiadiazolyl, 1,2,5-
thiadiazolyl, 1,3,5-triazinyl, and thiophenyl.
"-CH2(halo)" means a methyl group where one of the hydrogens of the methyl
group
has been replaced with a halogen. Representative -CH2(halo) groups include -
CH2F, -CH2C1, -
CH2Br, and -CH2I.
"-CH(halo)2" means a methyl group where two of the hydrogens of the methyl
group
have been replaced with a halogen. Representative -CH(halo)2 groups include -
CHF2, -CHC12,
-CHBr2, -CHBrCl, -CHC11, and -CH12.
"-C(halo)3" means a methyl group where each of the hydrogens of the methyl
group has
been replaced with a halogen. Representative -C(halo)3 groups include -CF3, -
CC13, -CBr3, and
-CI3.
"-Halogen" or "-halo" means -F, -Cl, -Br, or -I.
"(C2-C6)bridge" as used herein means a hydrocarbon chain containing 2 to 6
carbon
atoms joining two atoms of the piperidine ring of Formula (I), Formula (II),
Formula (III), or
Formula (IV) to form a fused bicyclic ring system. For example, compounds of
the invention
can comprise a (C2-C6)bridge joining positions 2 and 6 of the piperidine ring
(A-B can together
form a (C2-C6)bridge). Examples of compounds where A-B can together form a (C2-
C6)btidge
include compounds comprising the following ring systems: 8-aza-
bicyclo[3.2.1]octane; 9-aza-
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bicyclo[3.3.1]nonane; 10-aza-bicyclo[4.3.1]decane; 11-aza-
bicyclo[5.3.1]undecane; and 12-
aza-bicyclo[6.3.1]dodecane.
"Oxo", "=0", and the like as used herein mean an oxygen atom doubly bonded to
carbon or another element. "(=0)" when used in combination with a hydrocarbyl
group having
a variable number of atoms, such as -(CI-C6)alkyl(=0)Wi, means that two of the
hydrogens of
any methylene group are replaced by an oxo group.
"Thiooxo", "thioxo", "¨S", and the like as used herein mean a sulfur atom
doubly
bonded to carbon or another element.
"(=NH)" when used in combination with a hydrocarbyl group having a variable
number
of atoms, such as -(CI-C6)alkyl(¨NH)Wi, means that two of the hydrogens of any
methylene
group are replaced by an imino group.
As used herein in connection with Formula (1), when the dashed line in the
piperidine
or bridged piperidine central ring is absent, then Formula (1) is understood
to appear as follows
(R2)a R3
NY
N Y
A NI B
R,
As used herein in connection with Formula (I), when the dashed line in the
piperidine
or bridged piperidine central ring indicates the presence of a bond, then
Formula (I) is
understood to appear as follows
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(R2)a
A N B
R1
(1)
As used herein in connection with Formula (II), when the dashed line in the
piperidine
or bridged piperidine central ring is absent, then Formula (II) is understood
to appear as
follows
R3
(R2)a
C 5. ;
N Y
A N B
R1
As used herein in connection with Formula (II), when the dashed line in the
piperidine
or bridged piperidine central ring indicates the presence of a bond, then
Formula (II) is
understood to appear as follows
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R3
(R2.
N
C 5 4 3
N Y
A N B
R
(H)
As used herein in connection with Formula (III), when the dashed line in the
piperidine
or bridged piperidine central ring is absent, then Formula (11I) is understood
to appear as
follows
R3 4,
(R2).
X
N "4y
A NI B
R
(111)
As used herein in connection with Formula (III), when the dashed line in the
piperidinc
or bridged piperidine central ring indicates the presence of a bond, then
Formula (III) is
understood to appear as follows
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R3
(R2)a
X
C
A NI B
Ri
(HI)
As used herein in connection with Formula (IV), when the dashed line in the
piperidine
or bridged piperidine central ring is absent, then Formula (IV) is understood
to appear as
follows
N
(R2)a N
N'R12
A N B
R1
(IV)
As used herein in connection with Formula (IV), when the dashed line in the
piperidine
or bridged piperidine central ring indicates the presence of a bond, then
Formula (W) is
understood to appear as follows
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(R2)a N
N'Ri2
A N B
R1
(IV)
"-[(Ct-Cio)alkyl optionally substituted by Rdh-" as used herein in connection
with Z
means that, when h is 0, Z is a bond. When h is 1, Z-R1, as attached to the
piperidine ring
bearing A and B substituents, is
(R1)1
N¨[(Ci-Cio)alkyI]¨Ri
A
where; when i is 0, the (Ci-Cio)alkyl is unsubstituted by an R1 group at any
position other than
at the carbon atom furthest removed from the piperidine ring bearing A and B
substituents;
and, when i is 1, (i.e., the (Ci-Cio)alkyl is optionally substituted by R1)
the (C1-C1o)alkyl is
substituted by an R1 group at the carbon atom furthest removed from the
piperidine ring
bearing A and B substituents and substituted by another independently selected
R1 group at any
carbon atom of the (CI-C10)alkyl including at the carbon atom furthest removed
from the
piperidinc ring bearing A and B substituents.
As used herein in connection with formula (i) of RI, when the dashed line
indicates the
presence of a bond, then formula (i) is understood to appear as follows
1>1
(R8)p
)rn
(i)
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As used herein in connection with formula (i) of RI, when the dashed line is
absent,
then formula (i) is understood to appear as follows
(R8)p
)tn
(i)
=
The phrase "3,3-diphenylpropyl-" and the like, when used in connection with
the -Z-R1
group, means
A 11
1
2
= 3 110
where the 3 carbon of the propyl is indicated by the number 3 in the structure
above.
The phrase "tetrazolyl group" means
N¨N
N=_¨N
\
NN
Or HN N
%AP 1W
In one embodiment, the tetrazolyl group is
N¨N
In another embodiment, the tetrazolyl group is
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NN
\N
HNNNvz
The phrase "quinolinyl," "quinolinyl group" and the like means
(RA N (RA
/***
where R7 is defined above for the Heterocyclic-Substituted Piperidine
Compounds of Formulas
(I), (II) and (III) and b is zero or a positive integer.
The phrase "imidazolyl," "imidazolyl group" and the like means
(R2)a (R7)1, (R7)b
NHN¨f¨
N,Nor
sccs sssi sss3
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (II), R7 is defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formulas (II) and (III), and b is zero or a positive integer. The bond(s)
between an imidazolyl
substituent and the atom(s) of the group to which the imidazolyl substituent
is attached can be
effected through the removal of any hydrogen atom(s) of the imidazolyl
substituent, including
the hydrogen atom bonded to an imidazolyl nitrogen atom.
The phrase "triazolyl," "triazolyl group" and the like means
H (R2)a H (R2)a H (R2)a H (R2)a
zNis, 24../
fiN N iN
1¨N ,
or
VV-V-V JNAJV JVVII
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where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (11). The bond(s) between a triazolyl substituent and the atom(s) of
the group to
which the triazolyl substituent is attached can be effected through the
removal of any hydrogen
atom(s) of the triazolyl substituent, including the hydrogen atom bonded to a
triazolyl nitrogen
atom.
The phrase "benzo," "benzo group" and the like, when used in connection with
the Q
group, means
Or
(R2)a
where R2, and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III).
The phrase "pyridino," "pyridino group" and the like, when used in connection
with the
Q group, means
N
11/
'
(R2)1 (R2)a/
();
(R2)µ (R2)µ
where R2, and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formulas (II) and (III). In one embodiment, the optionally-substituted
pyridino Q group is
/sr
(R2)a
In another embodiment, the optionally-substituted pyridino Q group is
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[Iv v
(R2)a
In another embodiment, the optionally-substituted pyridino Q group is
reN'
(R2/µ
In another embodiment, the optionally-substituted pyridino Q group is
/IV
(R2)a
The phrase "naphthaleno," "naphthaleno group" and the like, when used in
connection
with the Q group, means
(R2)a
\
(R2)a I
or,
(R2).
where R2, and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formulas (11) and (111) and where an R2 group can be attached to any
substitutable ring carbon
atom of either, or both rings, of the naphthaleno group. In one embodiment,
the optionally-
substituted naphthaleno Q group is
I
i/
(R2)a
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where an R2 group can be attached to any substitutable ring carbon atom of
either, or both
rings, of the naphthaleno group. In another embodiment, the optionally-
substituted
naphthaleno Q group is
(R2)a
where an R2 group can be attached to any substitutable ring carbon atom of
either, or both
rings, of the naphthaleno group. In another embodiment, the optionally-
substituted
naphthaleno Q group is
(RA
\
where an R2 group can be attached to any substitutable ring carbon atom of
either, or both
rings, of the naphthaleno group.
The phrase "pyrimidino", "pyrimidino group" and the like, when used in
connection
with the optionally-substituted Q group, means
(,N
(R2)/2'.
or,
(R2)a
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III). In one embodiment, the optionally-substituted pyrimidino Q
group is
r
(R2).
In another embodiment, the optionally-substituted pyrimidino Q group is
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(R2)a
The phrase "pyrazino", "pyrazino group" and the like, when used in connection
with the
optionally-substituted Q group, means
(R2)7N
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III).
The phrase "pyridazino", "pyridazino group" and the like, when used in
connection
with the optionally-substituted Q group, means
f%K\
ksr or, ,
(R2)a (R2)a (Rz)a/
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III). In one embodiment, the optionally-substituted pyridazino Q
group is
N
(R2)µ
In another embodiment, the optionally-substituted pyridazino Q group is
N
(R2)µ
In another embodiment, the optionally-substituted pyridazino Q group is
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r)1.
The phrase "pyrrolino", "pyrrolino group" and the like, when used in
connection with
the optionally-substituted Q group, means
(R2
, or (X
X\ )a (R tiq liN
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III). In one embodiment, the optionally-substituted pyrrolino Q group
is
(R2)a F"
In another embodiment, the optionally-substituted pyrrolino Q group is
/õ2µ
HN/
(R2)aini
In another embodiment, the optionally-substituted pyrrolino Q group is
RAHN \
The phrase "imidazolino", "imidazolino group" and the like, when used in
connection
with the optionally-substituted Q group, means
, or I
(R2)/ [1--"Nir (R2)? "f
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where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (111). In one embodiment, the optionally-substituted imidazolino Q
group is
N-...,,,A
I
(R2)a/ FiN--N1
F .
In another embodiment, the optionally-substituted imidazolino Q group is
H \
N
X
(R2)a N i
The phrase "pyrazolino", "pyrazolino group" and the like, when used in
connection
with the optionally-substituted Q group, means
N\
H NI/
N '
(R2)/ (f ' (R2)a/ iH
\ LA
,
\ ....- ,or
/ N \/N
(R2)a (R2)ai ?ir
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III). In one embodiment, the optionally-substituted pyrazolino Q
group is
\
HN/K_Isr
(R2)a .
In another embodiment, the optionally-substituted pyrazolino Q group is
r\k/ 1
'R NN,
HN---N1
F .
In another embodiment, the optionally-substituted pyrazolino Q group is
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(R2)al N
In another embodiment, the optionally-substituted pyrazolino Q group is
\
1\i'
(R2)a
The phrase "triazolino", "triazolino group" and the like, when used in
connection with
the optionally-substituted Q group, means
N7\
11 , Or 1\1
(R2g (R2)/"'f
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III). In one embodiment, the optionally-substituted triazolino Q
group is
N \
/ N
1"2/a H
In another embodiment, the optionally-substituted triazolino Q group is
H
1\r/
(R2)a N
The phrase "furano", "furano group" and the like, when used in connection with
the
optionally-substituted Q group, means
0/
cc' , or ,
(R2)a (R2)a sr (R2)c/
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where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III). In one embodiment, the optionally-substituted furano Q group is
0
(1:(2)a
In another embodiment, the optionally-substituted furano Q group is
0/
(Rz)a
In another embodiment, the optionally-substituted furano Q group is
(R2)./ nc
The phrase "oxazolino", "oxazolino group" and the like, when used in
connection with
the optionally-substituted Q group, means
<
N OD\ //X\
or I ,
(Rzg (R2)a N
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III). In one embodiment, the optionally-substituted oxazolino Q group
is
N
I
(R2)al
In another embodiment, the optionally-substituted oxazolino Q group is
ft
(R2)a(oNsr\
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The phrase "isoxazolino", "isoxazolino group" and the like, when used in
connection
with the optionally-substituted Q group, means
0/1\1:1
N/ (
'
(R2)/""/ (R2)atONor
41,X N I
\/ir
(R2)al N or (R2)a/N
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III). In one embodiment, the optionally-substituted isoxazolino Q
group is
0/
(IRA
In another embodiment, the optionally-substituted isoxazolino Q group is
<X/
(R2),I
In another embodiment, the optionally-substituted isoxazolino Q group is
0//ss
/\N1
(R2)a
In another embodiment, the optionally-substituted isoxazolino Q group is
NR
(R2)a/\----Nssf
The phrase "oxadiazolino", "oxadiazolino group" and the like, when used in
connection
with the optionally-substituted Q group, means
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0 \ N õTr\
or 0IIII
0
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III). In one embodiment, the optionally-substituted oxadiazolino Q
group is
r\kµ I
In another embodiment, the optionally-substituted oxadiazolino Q group is
NIrl\j)
In another embodiment, the optionally-substituted oxadiazolino Q group is
01
The phrase "thiopheno", "thiopheno group" and the like, when used in
connection with
the optionally-substituted Q group, means
,S)4
"UcOr
F
(R2)a (R2)a (R2)a
f)crS
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (111). In one embodiment, the optionally-substituted thiopheno Q group
is
\S
(R2)a
In another embodiment, the optionally-substituted thiopheno Q group is
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S /*-3e121s:
/
(R2)a
In another embodiment, the optionally-substituted thiopheno Q group is
(R
2)a' si\jr
The phrase "thiazolino", "thiazolino group" and the like, when used in
connection with
the optionally-substituted Q group, means
jI I
i1
(R2)3(\isr , , or
/ (R2)a N
aS
Nf
where R2 and a are defined above for the Heterocyclic-Substituted Piperidinc
Compounds of
Formula (III). In one embodiment, the optionally-substituted thiazolino Q
group is
I
(R2): S
In another embodiment, the optionally-substituted thiazolino Q group is
SD'4
I
(R2)a" N
The phrase "isothiazolino", "isothiazolino group" and the like, when used in
connection
with the optionally-substituted Q group, means
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N/ I
---N
(R2)/'f (R2)/f
8/!1:
/ o N I
ir
(R2)a/ N r (R2)ai\N
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III). In one embodiment, the optionally-substituted isothiazolino Q
group is
=
In another embodiment, the optionally-substituted isothiazolino Q group is
NIX\
(R2)aIS
=
In another embodiment, the optionally-substituted isothiazolino Q group is
8// N
;
(R2)a/
=
In another embodiment, the optionally-substituted isothiazolino Q group is
S
NO
(R2)a
The phrase "thiadiazolino", "thiadiazolino group" and the like, when used in
connection
with the optionally-substituted Q group, means
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N, II N I siNs
or \N--
where R2 and a are defined above for the Heterocyclic-Substituted Piperidine
Compounds of
Formula (III). In one embodiment, the optionally-substituted thiadiazolino Q
group is
S:c\sr
I
In another embodiment, the optionally-substituted thiadiazolino Q group is
N I
S ,f
? .
In another embodiment, the optionally-substituted thiadiazolino Q group is
SII)(\
N
? .
When a first group is "substituted with one or more" second groups, one or
more
hydrogen atoms of the first group is replaced with a corresponding number of
second groups.
When the number of second groups is two or greater, each second group can be
the same or
different.
In one embodiment, a first group is substituted with up to three second
groups.
In another embodiment, a first group is substituted with one or two second
groups.
In another embodiment, a first group is substituted with only one second
group.
The term "animal" includes, but is not limited to, a human or a non-human
animal, such
as a companion animal or livestock, e.g., a cow, monkey, baboon, chimpanzee,
horse, sheep,
pig, chicken, turkey, quail, cat, dog, mouse, rat, rabbit or guinea pig.
The phrase "pharmaceutically acceptable derivative," as used herein, includes
any
pharmaceutically acceptable salt, solvate, prodrug, radiolabeled,
stereoisomer, enantiomer,
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diastereomer, other stereoisomeric form, racemic mixture, geometric isomer,
and/or tautomer,
e.g., of a Heterocyclic-Substituted Piperidine Compound of the invention. In
one embodiment,
the pharmaceutically acceptable derivative is a pharmaceutically acceptable
salt, solvate,
radiolabeled, stereoisomer, enantiomer, diastereomer, other stereoisomeric
form, racemic
mixture, geometric isomer, and/or tautomer, e.g., of a Heterocyclic-
Substituted Piperidine
Compound of the invention. In another embodiment, the pharmaceutically
acceptable
derivative is a pharmaceutically acceptable salt, e.g., of a Heterocyclic-
Substituted Piperidine
Compound of the invention.
The phrase "pharmaceutically acceptable salt," as used herein, is any
pharmaceutically
acceptable salt that can be prepared from a Heterocyclic-Substituted
Piperidine Compound
including a salt formed from an acid and a basic functional group, such as a
nitrogen group, of
a Heterocyclic-Substituted Piperidine Compound. Illustrative salts include,
but are not limited,
to sulfate, citrate, acetate, trifluoroacetate, oxalate, chloride, bromide,
iodide, nitrate, bisulfate,
phosphate, acid phosphate, isonicotinate, lactate, salicylate, acid citrate,
tartrate, oleate,
tannate, pantothenate, bitartrate, ascorbate, succinate, maleate, gentisinate,
fumarate,
gluconate, glucoronate, saccharate, formate, benzoate, glutamate,
methanesulfonate,
ethanesulfonate, benzenesulfonate, p-toluenesulfonate, and pamoate (i.e.,
1,1?-methylene-bis-(2-hydroxy-3-naphthoate)) salts. The term "pharmaceutically
acceptable
salt" also includes a salt prepared from a Heterocyclic-Substituted Piperidine
Compound
having an acidic functional group, such as a carboxylic acid functional group,
and a
pharmaceutically acceptable inorganic or organic base. Suitable bases include,
but are not
limited to, hydroxides of alkali metals such as sodium, potassium, cesium, and
lithium;
hydroxides of alkaline earth metal such as calcium and magnesium; hydroxides
of other
metals, such as aluminum and zinc; ammonia and organic amines, such as
unsubstituted or
hydroxy-substituted mono-, di-, or trialkylamines; dicyclohexylamine; tributyl
amine; pyridine;
picoline; N-methyl,N-ethylamine; diethylamine; triethylamine; mono-, bis-, or
tris-(2-hydroxy-(Ci-C3)alky1 amines), such as mono-, bis-, or tris-(2-
hydroxyethyl)amine,
2-hydroxy-tert-butylamine, or tris-(hydroxymethyl)methylamine,dii-C3)alkyl]
-N-(hydroxy-(Ci-C3)alkyl)-amines, such as N,N-dimethyl-N-(2-
hydroxyethyl)amine, or
tri-(2-hydroxyethyl)amine; N-methyl-D-glucamine; and amino acids such as
arginine, lysine,
and the like. One skilled in the art will recognize that, e.g., acid addition
salts of a
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Heterocyclic-Substituted Piperidine Compound can be prepared by reaction of
the compounds
with the appropriate acid via a variety of known methods.
The invention disclosed herein is also meant to encompass all solvates of the
Heterocyclic-Substituted Piperidine Compounds. "Solvates" are known in the art
and are
considered to be a combination, physical association and/or solvation of a
Heterocyclic-
Substituted Piperidine Compound with a solvent molecule, e.g., a disolvate,
monosolvate or
hemisolvate when the solvent molecule:Heterocyclic-Substituted Piperidine
Compound
molecule ratio is 2:1, 1:1 or 1:2, respectively. This physical association
involves varying
degrees of ionic and covalent bonding, including hydrogen bonding. In certain
instances, the
solvate can be isolated, for example when one or more solvent molecules arc
incorporated into
the crystal lattice of a crystalline solid. Thus, "solvate," as used herein,
encompasses both
solution-phase and isolatable solvates. A Heterocyclic-Substituted Piperidine
Compound of
the invention can be present as a solvated form with a pharmaceutically
acceptable solvent,
such as water, methanol, ethanol, and the like, and it is intended that the
invention include both
solvated and unsolvated Heterocyclic-Substituted Piperidine Compound forms. As
"hydrate"
relates to a particular subgroup of solvates, i.e., where the solvent molecule
is water, hydrates
are included within the solvates of the invention. Preparation of solvates is
known in the art.
For example, M. Caira etal., J. Pharmaceut. Sci., 93(3):601-611 (2004),
describes the
preparation of solvates of fluconazole with ethyl acetate and with water.
Similar preparations
of solvates, hemisolvate, hydrates, and the like are described by E.C. van
Tonder etal., AAPS
Pharm. Sci. Tech., 5(1):Article 12 (2004), and A.L. Bingham etal., Chem.
Commun., 603-604
(2001). A typical, non-limiting, process involves dissolving the Heterocyclic-
Substituted
Piperidine Compound in a desired amount of the desired solvent (organic, water
or mixtures
thereof) at temperatures above about 20 C to about 25 C, cooling the solution
at a rate
sufficient to form crystals, and isolating the crystals by known methods,
e.g., filtration.
Analytical techniques, for example, infrared spectroscopy, can be used to show
the presence of
the solvent in a crystal of the solvate.
The invention disclosed herein is also meant to encompass all prodrugs of the
Heterocyclic-Substituted Piperidine Compounds. "Prodrugs" are known in the art
and, while
not necessarily possessing any pharmaceutical activity as such, are considered
to be any
covalently bonded carrier(s) that releases the active parent drug in vivo. In
general, such
prodrugs will be a functional derivative of a Heterocyclic-Substituted
Piperidine Compound of
Formulas (I), (II), (III) and/or (IV) which is readily convertible in vivo,
e.g., by being
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metabolized, into the required Heterocyclic-Substituted Piperidine Compound of
Formulas (I),
(11), (III) and/or (IV). Conventional procedures for the selection and
preparation of suitable
prodrug derivatives are described in, for example, Design of Prodrugs, H.
Bundgaard ed.,
Elsevier (1985); "Drug and Enzyme Targeting, Part A," K. Widder etal. eds.,
Vol. 112 in
Methods in Enzymology, , Academic Press (1985); Bundgaard, "Design and
Application of
Prodrugs," Chapter 5 (pp. 113-191) in A Textbook of Drug Design and
Development, P.
Krogsgaard-Larsen and H. Bundgaard eds., Harwood Academic Publishers (1991);
Bundgaard
et al., Adv. Drug Delivery Revs. 8:1-38 (1992); Bundgaard et al., J.
Pharmaceut. Sci. 77:285
(1988); and Kakeya etal., Chem. Phartn. Bull. 32:692 (1984).
In addition, one or more hydrogen, carbon or other atoms of a Heterocyclic-
Substituted
Piperidine Compound can be replaced by an isotope of the hydrogen, carbon or
other atoms.
Such a "radiolabeled," "radiolabeled form", and the like of a Heterocyclic-
Substituted
Piperidine Compound, each of which is encompassed by the invention, is useful
as a research
and/or diagnostic tool in metabolism pharmacokinetic studies and in binding
assays. Examples
of isotopes that can be incorporated into a Heterocyclic-Substituted
Piperidine Compound of
the invention include isotopes of hydrogen, carbon, nitrogen, oxygen,
phosphorous, sulfur,
fluorine and chlorine, such as 2H, 3H, 13C, 14C, 15N, 1805 170, 31p, 32F,, 35
, S- 18F, and 36C1,
respectively. Radiolabeled compounds of the invention can be prepared by
methods known in
the art. For example, tritiated compounds of Formula (I) can be prepared by
introducing
tritium into the particular compound of Formula (I), for example, by catalytic
dehalogenation
with tritium. This method can include reacting a suitably halogen-substituted
precursor of a
compound of Formula (1) with tritium gas in the presence of a suitable
catalyst, for example,
Pd/C, in the presence or absence of a base. Other suitable methods for
preparing tritiated
compounds can be found in Filer, Isotopes in the Physical and Biomedical
Sciences, Vol. 1,
Labeled Compounds (Part A), Chapter 6 (1987). "C-labeled compounds can be
prepared by
employing starting materials having a "C carbon.
A Heterocyclic-Substituted Piperidine Compound can contain one or more
asymmetric
centers and may thus give rise to enantiomers, diastereomers, and other
stereoisomeric forms.
The invention is also meant to encompass all such possible forms as well as
their racemic and
resolved forms or any mixture thereof. When a Heterocyclic-Substituted
Piperidine
Compound contains an olefinic double bond or other center of geometric
asymmetry, and
unless specified otherwise, it is intended to include all "geometric isomers,"
e.g., both E and Z
geometric isomers. All "tautomers," e.g., ketone-enol, amide-imidic acid,
lactam-lactim,
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enamine-imine, amine-imine, and enamine-enimine tautomers, are intended to be
encompassed
by the invention as well.
As used herein, the terms "stercoisomer," "stercoisomeric form", and the like
are
general terms for all isomers of individual molecules that differ only in the
orientation of their
atoms in space. It includes enantiomers and isomers of compounds with more
than one chiral
center that are not mirror images of one another ("diastereomers").
The term "chiral center" refers to a carbon atom to which four different
groups are
attached.
The term "enantiomer" or "enantiomeric" refers to a molecule that is
nonsuperimposeable on its mirror image and hence optically active where the
enantiomer
rotates the plane of polarized light in one direction and its mirror image
rotates the plane of
polarized light in the opposite direction.
The term "raccmic" refers to a mixture of equal parts of enantiomcrs which is
optically
inactive.
The term "resolution" refers to the separation or concentration or depletion
of one of
the two enantiomeric forms of a molecule.
Optical isomers of a Heterocyclic-Substituted Piperidine Compound can be
obtained by
known techniques such as chiral chromatography or formation of diastereomeric
salts from an
optically active acid or base.
The phrase "effective amount," when used in connection with a Heterocyclic-
Substituted Piperidine Compound, means an amount effective for: (a) treating
or preventing a
Condition; (b) detectably inhibiting ORL-I receptor function in a cell; or (c)
detectably
activating ORL-1 receptor function in a cell.
The phrase "effective amount," when used in connection with a second
therapeutic
agent means an amount for providing the therapeutic effect of the second
therapeutic agent.
The terms "modulate," "modulating", and the like as used herein with respect
to the
ORL-1 receptor mean the mediation of a pharmacodynamic response (e.g.,
analgesia) in an
animal from (i) inhibiting or activating the receptor, or (ii) directly or
indirectly affecting the
normal regulation of the receptor activity. Compounds that modulate the
receptor activity
include agonists, antagonists, mixed agonists/antagonists and compounds which
directly or
indirectly affect regulation of the receptor activity.
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The term "Me0H" means methanol, i.e., methyl alcohol.
The term "Et0H" means ethanol, i.e., ethyl alcohol.
The term "THF" means tetrahydrofuran.
The term "DMF" means N,N-dimethylformamide.
The term "DCM" means methylene chloride, i.e., dichloromethane.
The term "DCE" means dichloroethane.
The term "Et0Ac" means ethyl acetate.
The term "NH4OH" means ammonium hydroxide.
The term "TEA" means tricthylaminc.
The term "MeCN" means acetonitrile.
The term "NaH" means sodium hydride.
The term "AcOH" means acetic acid.
The term "DMA" means N,N-diisopropylethylamine or N-ethyl-N-isopropylpropan-2-
amine.
The term "TFFA" means trifluoroacetic anhydride or 2,2,2-trifluoroacetic
anhydridc.
The term "DMSO" means dimethylsulfoxide, i.e., methylsulfinylmethane.
The term "Bn" means benzyl or
2'1(1.1
=
The term "BOC" means tert-butyloxycarbonyl or
0 HC
The term "CBZ" means benzyloxycarbonyl or
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=
The term "IBD" means inflammatory-bowel disease.
The term "IBS" means irritable-bowel syndrome.
The term "ALS" means amyotrophic lateral sclerosis.
The phrases "treatment of," "treating", and the like include the amelioration
or
cessation of a Condition or a symptom thereof. In one embodiment, treating
includes
inhibiting, for example, decreasing the overall frequency of episodes of a
Condition or a
symptom thereof.
The phrases "prevention of," "preventing", and the like include the avoidance
of the
onset of a Condition or a symptom thereof.
4.6 Methods for Making the Heterocyclic-Substituted Piperidine Compounds
The Heterocyclic-Substituted Piperidine Compounds can be made using
conventional
organic synthesis, in view of the present disclosure, and including the
following illustrative
methods shown in the schemes below where A, B, Y, Z, RI, R2, R3, R12 and a are
defined
above, L is a halogen leaving group such as Br or 1, L' is F or CI, each R is
independently, e.g.,
a -(Ci-C4)alkyl group, and q is the integer 0, 1, or 2.
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Scheme A
....(0...NH2
NH2
(R2)57_
0
6
N.,
NH2
(Lit 1)
A N B NH,-Z-RI A N B Reductive Amination
A ¨ B
/ = I Conditions (Lit 2) I
R R Z Z
I I
Al R1 RI
Al A4
0 H 0
A B 0 0
Base (Lit 2) (R2). 9 /i A(s4)q(Ci
N ....6 0
H \
Aldehyde / Ketone
A2
Reductive Amination
Conditions (Lit 2) A N g
I
Z
I
Ri
A5
In Scheme A and in the other schemes, "Lit 1" refers to the procedures
described in the
publications D.A. Tortolini and M.A. Poss, Org. Lett. 1:1261 (1999) and/or
International PCT
Publication No. WO 2005/075459 Al of Euro-Celtique S.A. and "Lit 2" refers to
the
procedures described in U.S. Patent No. 6,635,653 by Goehring etal.
Compounds of formula Al and A2 are commercially available or can be prepared
by
methods known to the art.
A piperidinium salt of structure Al can be reacted with a primary amine in a
suitable
solvent such as ethanol under reflux conditions in the presence of a base such
as potassium
carbonate as described in reference "Lit 1" to provide the 1-
(substituted)piperidine-4-one
compound A3. As described in reference "Lit 2," compound A3 can also be
prepared by
alkylation of a piperidine-4-one of structure A2 with, e.g., an alkyl bromide
or alkyl iodide, in
a suitable solvent such as dimethyl formamide, acetonitrile or dimethyl
sulfoxide in the
presence of an inorganic base such as potassium carbonate or an organic base
such as
diisopropylethylamine. As described in reference "Lit 2," compound A3 can also
be prepared
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by reductive amination of compound A2 with an aldehyde or ketone using an acid
such as
acetic acid and either sodium triacetoxyborohydride or sodium cyanoborohydride
in a suitable
solvent such as dichloromethane or methanol, respectively. Compound A3 can
then be
reductively aminated with a substituted or unsubstituted 1,2-phenylenediamine
using an acid
such as acetic acid and either sodium triacetoxyborohydride or sodium
cyanoborohydride in a
suitable solvent such as dichloromethane or methanol, respectively, to provide
compound A4,
as described in reference "Lit 2." Compound A4 can be dissolved in a suitable
solvent such as
dichloromethane and cyclized with a cyclizing reagent, such as a di-acid
chloride, e.g., oxalyl
dichloride or malonyl dichloride (q = 0 and q = 1, respectively), to provide
compound A5.
Scheme B
0 )1..ii),...0 0
1) NH2OH
/el
N B NH2 0 0
CI q 0C2H5
2) H2, Catalyst
A ----3111b- NH q 0C2H5
I (Lit lb) A N B Base
i
Z
A/N B
I Z
I
R1
zI
R1
A3 B1 I
R1
ln
NO2
H 0
0 L
(R2)a¨a,./'.1 Nlq
2 a
re,'
(R2)a¨c, ,.. I
Base
AN -sz.''N'')YLOC2H5
1)11,, Catalyst
....E______ xi.....
2) Alkali Metal
A N B Alkoxide ANB
I zI
Z
I I
Ri R1
A5 B3
In Scheme B, "Lit lb" refers to the procedures described in International PCT
Publication No.
WO 2005/075459 Al of Euro-Celtique S.A.
As described in reference "Lit lb," compound A3 can be reacted with 50%
aqueous
hydroxylamine in a suitable solvent such as hexanes to provide an intermediate
hydroxylamine
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which can be converted to an oxime by dehydration in a suitable solvent such
as toluene under
reflux conditions using a Dean-Stark apparatus. The oxime intermediate can be
reduced to the
primary amine compound Bi by catalytic hydrogenation using a catalyst such as
5% rhodium
on alumina in a suitable solvent such as ethanol under a hydrogen atmosphere
at a pressure of
latm or greater in a suitable apparatus such as a Parr Hydrogenator according
to reference "Lit
lb." Compound B1 can be reacted with a cyclizing reagent, such as ethyl 2-
chloro-
2-oxoacetate or or ethyl 3-chloro-3-oxopropanoate, in the presence of a base
such as
triethylamine to provide compound B2. Compound B2 can be reacted with a
substituted or
unsubstituted 2-halo-1-nitrobenzene, such as 2-fluoro-l-nitrobenzene, in the
presence of a base
such as potassium carbonate in a suitable solvent such as acetonitrile under
reflux conditions to
provide compound B3. Compound B3 can be treated with a hydrogenation catalyst
such as
Raney nickel in a suitable solvent such as ethanol under a hydrogen
atmosphere, and the
product immediately treated with an alkali metal alkoxide such as sodium
ethoxide in a
suitable solvent such as methanol or ethanol to provide compound A5.
Scheme C
_
_
NO2
NH2
(R2L_0:
c ,
NH D NH
NO2 hc .
...,
A'..LIµB
I (R2)a_0(
z ..
B CH3COCI A N B
R1 ¨pp. I
Z ¨OP-
Base I H3C 0 A
R1 _ 1 _
B1
El C2
o o
H 0
/
NO2
(R2)a_aN1 0 0
ciA,,,)õLc,
q .
..,..
N
N )LfiAq 0C2H5 2) Et0II
0 n - 1 ) 142, Catalyst D
x=,.... C ,õõA________ ,Lx
2) Alkali Metal
Alkoxide õ, C
A N B
I A y B
Z Z
I I
R1 R,
A5 ca.
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Compound B1 can be reacted with a substituted or unsubstituted 2-halo-l-
nitrobenzene,
such as substituted or unsubstituted 2-fluoro-1-nitrobenzene, in the presence
of a base as
described in Scheme B to provide compound Cl. The reactivity of the piperidine
nitrogen is
then masked by reaction with a sacrificial acylating agent acetyl chloride to
provide the acetyl-
piperidinium salt C2. Compound C2 can then be reacted with a cyclizing
reagent, such as a di-
acid chloride, e.g., oxalyl dichloride or malonyl dichloride, in a suitable
solvent such as
dichloromethane, followed by treatment of the mixture with ethanol to provide
compound Q.
As described in Scheme B, compound C3 can then be treated with a catalyst,
such as Raney
nickel, under a hydrogen atmosphere to provide an intermediate which is
immediately cyclized
to provide compound A5.
Scheme D
0
NH2 0
NH 25
H ¨0 N=C:0
,1,x.0
D/c.L..õ.c
A A N\B
R1 R/
D1
Compound M can be treated with ethoxycarbonyl isocyanate in a suitable
solvent,
such as 1,2-dichloroethane, in a microwave reactor (Ethos MicroSYNTH,
Milestone Inc.,
Shelton, CT) to provide compound Dl.
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Scheme E
R3
(R2) a) L
I 0
_aN
N N
_2...._30....R -Lze
Base DxC
0
-...,..
A N B A N B
1 I
Z Z
I I
R1 R1
A5 El
Compound A5 can be treated with sodium hydride in a suitable solvent, such as
DMF,
followed by treatment with an R3 having a leaving group substituent, such as
an alkyl bromide,
to provide compound El.
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Scheme F
ortoa_al NH--Nc:i R3
I 0
I NH
12.3-L
:e....:,..,.../.. 0
A B Base
N
,
1 A N B
I
Z Rly, Z
R1
111R11 3 (R2)a-1 I
Base 1
Fl
N_...1
---J1R12
N
A
...., c
A N B
I
Z
I
Ri
F2
Compound D1 can be alkylated with an R3 group having a leaving group
substituent,
such as an alkyl bromide, using a suitable base to provide compound Fl.
Compound Fl can
be further alkylated with an R12 group having a leaving group substituent,
such as an alkyl
bromide, using a suitable base to provide compound F2.
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Scheme G
N N
(R2)a_a, N )9
9
===.,. H2, Catalyst N
¨VP-
A/N B A N
H B
0 ) az
...,6.Li .,
G1
H 0 R1-Z-L (Lit 2)
or
N Reductive Atrunination with
Aldehyde or Ketone (Lit 2)
(R2)a¨ I ( )
q
N
:c1 0
=-..,.. C
......."..,õ
A N B
I
i
R,
A5
Compound G1 can be hydrogenolyzed using a catalyst, such as palladium on
charcoal,
in a suitable solvent, such as methanol, under a hydrogen atmosphere to
provide compound
62. The -Z-R1 group can be attached to compound 62 as described in Scheme A,
e.g., using
either alkylation or reductive amination conditions, to provide compound A5.
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Scheme H
(R2)a_a (R2)a
N
0 D eS
Lawesson's reagent
C __________ 00'
AN
(Lit 3)
A/ N
RI 1
A5 H1
The Compound of Formula HI where each Y is S can be made by, e.g., reacting a
Compound of Formula A5 (i.e., where each Y is 0) with Lawesson's reagent
(i.e., 2,4-bis(4-
methoxypheny1)-1,3-dithia-2,4-diphosphetane-2,4-disulfide) according to the
procedure
described in "Lit 3," which refers the publication S.O. Lawesson et al., Bull.
Soc. Chim. Belg.
86:679 (1977). In one embodiment, the Compound of Formula H1 can be made by
reacting a
Compound of Formula A5 with Lawesson's reagent in a nonpolar solvent such as
TI-IF or
toluene at a temperature of about 100 C for about 2-3 hours, as shown above.
Scheme 1
ON 2 NH2
(R2)a_a: (R2)a_0(
NH NH
H2, Catalyst
c
A N B A N B
1
C 1 A4
Compound Cl can be converted to compound M using a catalyst, such as Raney
nickel, in a suitable solvent, such as ethanol, under a hydrogen atmosphere.
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Scheme J
1
H 0
( R 2 /a
N 0
eZi
(R2)a¨ I ( )
q ________________________________________
)10-
N
Dj 0 Base
A
7\ N/..\
I N
B OH A/
I B
I z
I
R1 ?O/N(R)2
R1
N HN(R)2
A5
(R2)a¨eY
q
N
A N B
I
Z
I
R1
J2
Compound A5 can be reacted with epichlorohydrin in the presence of a suitable
base to
provide compound J1. Compound J1 can be reacted with a suitable amine, such as
NH(R)2, in
a suitable solvent to provide compound J2.
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Scheme K
NH 2
)
0 0 rr,k,., (R2)a
NH
RCOCI (R2)3
NH
A N B BaseA'NB Na(0Ac)3BH
ANBH OR
AZ 0 R
K2
o o
ci)LV?L
ci
H 0
N H 0 H 0
(R2)a ______________ )q
(R2)a-- )q (R2)a ________ )q
Ri-Z-I, (Lit 2)
0 Reductive Ztrunination with
0
Aldehyde or Ketone (Lit 2)
Deprotect
wic _______________________________________________________
A N B
ANB ANB
H OR
Ri
K4 K3
The piperidine nitrogen of compound A2 can be protected as, e.g., the
trifluoroacetamide or carbobenzyloxy carbamate using trifluoroacetic anhydride
or
benzychloroformate, respectively, in a suitable solvent such as
dichloromethane in the
presence of an organic base such as triethylamine to provide compound Kl.
Compound KI
can be reductively aminated with a substituted or unsubstituted 1,2-
phenylenediamine using
sodium triacetoxyborohydride in a solvent such as dichloromethane in the
presence of acetic
acid to provide compound K2. Compound K2 can be cyclized with a cyclizing
reagent, such
as a di-acid chloride, e.g., oxalyl dichloride or malonyl dichloride, to
provide compound K3.
The protecting group (such as -C(0)R illustrated above) can be removed under
standard
conditions (see, e.g., "Protective Groups in Organic Synthesis," T. W. Greene
and P.G.M.
Wuts, John Wiley & Sons, Inc., 31"d Ed., New York (1999), pp. 531-535, 556-
557) to provide
compound K4. The -Z-R1 group can be attached to compound K4 as described in
Scheme A,
e.g., using either alkylation or reductive amination conditions, to provide
compound A5.
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Scheme L
0 ekNHBOC
NHBOC (R2)a ______ (R2)a¨
NH NH
(R2)a1) (BOC)20 (R2)a¨Fr
H+
NO2 NH9 _______
2) K2CO3 Na(0Ac)3BH
3) H2, Catalyst
Li
R1 R1
La
Compound LI can be converted to compound L2 in a three step procedure as
follows.
Substituted pyridine compound Ll can be treated with di-tert-butyl-dicarbonate
and
4-dimethylamino pyridine in a suitable solvent to provide a di-BOC protected
intermediate.
The intermediate can be treated with potassium carbonate to provide the mono-
BOC protected
intermediate which can be converted to compound L2 by hydrogenating using
Raney nickel or
other standard conditions (using palladium on carbon or the like). Compound L2
can be
reductively aminated with a suitably functionalized 4-piperidone (containing a
Z-R1 group on
the piperidine nitrogen and substituents A and B) using sodium
triacetoxyborohydride and an
acid such as acetic acid in a suitable solvent such as dichloromethane to
provide compound L3.
The BOC protecting group can be removed under acid conditions (for example,
using
hydrogen chloride in ethyl acetate) to provide compound A4.
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Scheme M
R.--e IR----\ R----1
N----.0
NH NH
'NH
1 r'-'-NH2
no N ______________________________________
(R2/a 1,L,..., V s2/a I (R2) __
a (R2)aN
N4
NH NH NH o
, ri,õ..:
---k RCOCI .--).. Reduction ),,...... C2H5,0,11¨NCO
A _______________________________________ ir-
...-^,.. ..---.. A N B----.. ---.
Base ,----... ..----.
N B A N B A N B 1
1
1
4 4 4
Ri Ri R1 R1
A4 Mi. M2 M3
0\0\\
CI )Y1ILOC
q 2.H
0 0
H 0
q
Hisr-INI'OC H 2 5
(R2)air (R2)ac?..,,,x ( )9
NH N
)\
Alkali Metal
A N B Alkoxide A N B
1
41
4 _________________________________________ N.
R1 R1
M4 A5
Compound A4 can be converted to the 4-methoxybenzoyl derivative compound All
using 4-methoxy-benzoylchloride in a suitable solvent in the presence of an
organic or
5 inorganic base. Compound M1 can be reduced to compound M2, e.g., using
lithium aluminum
hydride. As described in Scheme D, compound M2 can be converted to compound M3
using
ethoxycarbonyl isocyanate in a microwave reactor. Alternatively, compound A4
can be
reacted with a cyclizing reagent, such as ethyl 2-chloro-2-oxoacetate or ethyl
3-chloro-3-
oxopropanoate, and a base such as triethylamine in a suitable solvent such as
dichloromethane
to provide compound M4. Compound M4 can be converted to compound A5 using an
alkali
metal alkoxide such as sodium ethoxide in a suitable solvent such as ethanol.
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Scheme N
0
x0R 0OR A
HN OBn H2N
D-L D /µ` 1) NaOH D H2, Catalyst D
pr---N---Th Base A----1\1""-B 2) Ph2RON3 ANB
3) BnOH
d'.1R 0 R
Ni N2 Na N4
)j-
(R2
(R2L
L'
Base
00
H H
HN-r NO2
(R-,1 - (R2)a =(R2)õ,. )q (¨Pt' 2/1 a
(Ltt 2) NH NH
D ¨ Reductive ALination vtith D 0 Alkali Metal
D 1) H2, Catalyst D
Aldehyde or ketone (Lit 2) Alkoxide
I
o
A'NB _______________________ ANB ANB
2) ci)11-1-1q(OR (S.R
tkA NI
Compound N1 can be converted to compound N2 using lithium diisopropylamide in
a
suitable solvent such as tetrahydrofuran followed by treatment with a D having
a leaving group
substituent, e.g., iodomethane. Compound N2 can be converted to compound N3 in
a two step
procedure. First, the ester can be hydrolyzed to the carboxylic acid using an
aqueous base such
as sodium hydroxide. This can be followed by treatment with diphenylphosphoryl
azide and
benzyl alcohol under Curtius rearrangement conditions. The benzyloxycarbonyl
group of
compound N3 can be removed under hydrogenolysis conditions, e.g., using
palladium on
charcoal, to provide compound N4. Compound N4 can be converted to compound N5
by
reaction with a substituted or unsubstituted 2-halo-1-nitrobenzene, such
substituted or
unsubstituted as 2-fluoro-1-nitrobenzene, in the presence of a base such as
potassium carbonate
in a suitable solvent such as acetonitrile. Compound N5 can be converted to
compound N6 in
a two step procedure. First, reduction of the nitro group can be carried out
by hydrogenation
using a metal catalyst such as Raney nickel in a suitable solvent such as
ethanol. This can be
followed by reaction with a cyclizing reagent, such as ethyl 2-chloro-2-
oxoacetate or ethyl 3-
chloro-3-oxopropanoate, and a base such as triethylamine and a suitable
solvent such as
dichloromethane. Compound N6 can be converted to compound N7 using an alkali
metal
alkoxide, such as sodium ethoxide, in a suitable solvent, such as ethanol,
followed by removal
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of the protecting group R under standard conditions. The -Z-R1 group can be
attached to
compound N7 as described in Scheme A, e.g., using either alkylation or
reductive amination
conditions, to provide compound N8.
Scheme 0
H 0
rr":/'NH2
(R2 )a
(R 2)a 0(N$
0 NH
o o
R(R2).
. AHA'a
A N B ___________________
H+
R1 R1 R1
9.1 Q2
Base/ \ R3-1-
Base
H 0 R3
0
N
(R2)a-7- )
= ,1 (R2)a-
)
1 0
CO2H I 0
CO2R
A N B
ANB
Ri
Q40
Compound 01 can be reacted with a substituted or unsubstituted 1,2-
phenylenediamine
and a catalytic amount of an acid such as acetic acid in a suitable solvent
such as toluene with
azeotropic water removal in a Dean-Stark apparatus to provide compound Q.
Compound 02
can be cyclized to compound 03 by reaction with cyclizing reagent, such as a
di-acid chloride,
e.g., oxalyl dichloride or malonyl dichloride, in a suitable solvent such as
dichloromethane
under high dilution conditions. Compound W can be converted to compound 04
under basic
conditions in a suitable solvent, e.g., by reaction with aqueous sodium
hydroxide in ethanol.
Alternatively, compound 03 can be alkylated with an R3 group having a leaving
group
substituent, such as an alkyl bromide or alkyl chloride, using a suitable base
such as sodium
hydride in a suitable solvent such as DMF to provide compound Q.
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Scheme P
H 0
H 0
L/NN
¨r (R)2NaN )(1
ri
0 NH(R)2
Catalyst
eLN B
R
P1 P2
Compound P1 can be converted to compound P2 using the desired amine under
Buchwald-Hartwig palladium-catalyzed amination conditions, e.g., by adapting
the procedure
described in the publication J. Louie and J.F. Hartwig, Tetrahedron Leo'.
36(21):3609-3612
(1995).
4.7 Therapeutic Uses of the Heterocyclic-Substituted Piperidine Compounds
In accordance with the invention, the Heterocyclic-Substituted Piperidine
Compounds
are administered to an animal in need of treatment or prevention of a
Condition.
In one embodiment, an effective amount of a Heterocyclic-Substituted
Piperidine
Compound can be used to treat or prevent any condition treatable or
preventable by inhibiting
the activity of the ORL-1 receptor. Examples of conditions that are treatable
or preventable by
inhibiting the activity of the ORL-1 receptor include, but are not limited to,
pain (CNS effect),
memory disorders, obesity, constipation, depression, dementia, and
Parkinsonism.
In another embodiment, an effective amount of a Heterocyclic-Substituted
Piperidine
Compound can be used to treat or prevent any condition treatable or
preventable by activating
the ORL-1 receptor. Examples of conditions that are treatable or preventable
by activating the
ORL-1 receptor include, but are not limited to, pain (PNS effect), anxiety,
cough, diarrhea,
blood pressure disorder (via vasodilation and via diuresis), epilepsy,
anorexia/cachexia, urinary
incontinence, and drug abuse.
The Heterocyclic-Substituted Piperidine Compounds can be used to treat or
prevent
acute or chronic pain. Examples of pain that can be treated or prevented using
a Heterocyclic-
Substituted Piperidine Compound include, but are not limited to, cancer pain,
neuropathic pain,
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labor pain, myocardial infarction pain, pancreatic pain, colic pain, post-
operative pain,
headache pain, muscle pain, arthritic pain, and pain associated with a
periodontal disease,
including gingivitis and periodontitis.
The Heterocyclic-Substituted Piperidine Compounds can also be used to treat or
prevent pain associated with inflammation or with an inflammatory disease in
an animal. Such
pain can arise where there is an inflammation of the body tissue which can be
a local
inflammatory response or a systemic inflammation. For example, a Heterocyclic-
Substituted
Piperidine Compound can be used to treat or prevent pain associated with
inflammatory
diseases including, but not limited to, organ transplant rejection;
reoxygenation injury resulting
from organ transplantation (see Grupp etal., J. Mol, Cell Cardiol. 31:297-303
(1999))
including, but not limited to, transplantation of the heart, lung, liver, or
kidney; chronic
inflammatory diseases of the joints, including arthritis, rheumatoid
arthritis, osteoarthritis and
bone diseases associated with increased bone resorption; inflammatory bowel
diseases, such as
ileitis, ulcerative colitis, Barrett's syndrome, and Crohn's disease;
inflammatory lung diseases,
such as asthma, adult respiratory distress syndrome, and chronic obstructive
airway disease;
inflammatory diseases of the eye, including corneal dystrophy, trachoma,
onchocerciasis,
uveitis, sympathetic ophthalmitis and endophthalmitis; chronic inflammatory
disease of the
gum, including gingivitis and periodontitis; tuberculosis; leprosy;
inflammatory diseases of the
kidney, including uremic complications, glomerulonephritis and nephrosis;
inflammatory
disease of the skin, including sclerodermatitis, psoriasis and eczema;
inflammatory diseases of
the central nervous system, including chronic demyelinating diseases of the
nervous system,
multiple sclerosis, AIDS-related neurodegeneration and Alzheimer 's disease,
infectious
meningitis, encephalomyelitis, Parkinson's disease, Huntington's disease,
amyotrophic lateral
sclerosis and viral or autoimmune encephalitis; autoimmune diseases, including
Type 1 and
Type 11 diabetes mellitus; diabetic complications, including, but not limited
to, diabetic
cataract, glaucoma, retinopathy, nepluppathy (such as microaluminuria and
progressive
diabetic nephropathy), gangrene of the feet, atherosclerotic coronary arterial
disease, peripheral
arterial disease, nonketotic hyperglycemic-hyperosmolar coma, foot ulcers,
joint problems, and
a skin or mucous membrane complication (such as an infection, a shin spot, a
candidal
infection or necrobiosis lipoidica diabeticorum), immune-complex vasculitis,
and systemic
lupus erythematosus (SLE); inflammatory disease of the heart, such as
cardiomyopathy,
ischemic heart disease hypercholesterolemia, and artherosclerosis; as well as
various other
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diseases that can have significant inflammatory components, including
preeclampsia, chronic
liver failure, brain and spinal cord trauma, and cancer. A Heterocyclic-
Substituted Piperidine
Compound can also be used to treat or prevent pain associated with
inflammatory disease that
can, for example, be a systemic inflammation of the body, exemplified by gram-
positive or
gram negative shock, hemorrhagic or anaphylactic shock, or shock induced by
cancer
chemotherapy in response to pro-inflammatory cytokines, e.g., shock associated
with pro-
inflammatory cytokines. Such shock can be induced, e.g., by a chemotherapeutic
agent that is
administered as a treatment for cancer.
The Heterocyclic-Substituted Piperidine Compounds can also be used to treat or
prevent pain associated with nerve injury (i.e., neuropathic pain). Chronic
neuropathic pain is
a heterogenous disease state with an unclear etiology. In chronic neuropathic
pain, the pain
can be mediated by multiple mechanisms. This type of pain generally arises
from injury to the
peripheral or central nervous tissue. The syndromes include pain associated
with spinal cord
injury, multiple sclerosis, post-herpetic neuralgia, trigeminal neuralgia,
phantom pain,
causalgia, and reflex sympathetic dystrophy and lower back pain. The chronic
pain is different
from acute pain in that chronic neuropathic pain patients suffer the abnormal
pain sensations
that can be described as spontaneous pain, continuous superficial burning
and/or deep aching
pain. The pain can be evoked by heat-, cold-, and mechano-hyperalgesia, or by
heat-, cold-, or
mechano-allodynia.
Chronic neuropathic pain can be caused by injury or infection of peripheral
sensory
nerves. It includes, but is not limited to, pain from peripheral nerve trauma,
herpes virus
infection, diabetes mellitus, causalgia, plexus avulsion, neuroma, limb
amputation, and
vasculitis. Neuropathic pain can also be caused by nerve damage from chronic
alcoholism,
human immunodeficiency virus infection, hypothyroidism, uremia, or vitamin
deficiencies.
Stroke (spinal or brain) and spinal cord injury can also induce neuropathic
pain. Cancer-
related neuropathic pain results from tumor growth compression of adjacent
nerves, brain, or
spinal cord. In addition, cancer treatments, including chemotherapy and
radiation therapy, can
cause nerve injury. Neuropathic pain includes but is not limited to pain
caused by nerve injury
such as, for example, the pain from which diabetics suffer.
The Heterocyclic-Substituted Piperidine Compounds can be used to treat or
prevent a
migraine including, but not limited to, migraine without aura ("common
migraine"), migraine
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with aura ("classic migraine"), migraine without headache, basilar migraine,
familial
hemiplegic migraine, migrainous infarction, and migraine with prolonged aura.
According to the invention, some of the Heterocyclic-Substituted Piperidine
Compounds are agonists at the ORL-1 receptor, and some of the Heterocyclic-
Substituted
Piperidine Compounds are antagonists at the ORL-1 receptor. In another
embodiment, a
Heterocyclic-Substituted Piperidine Compound is an agonist at the ORL-1
receptor and an
agonist at a la, lc and/or 6 opioid receptor, particularly at a fa, opioid
receptor. In another
embodiment, a Heterocyclic-Substituted Piperidine Compound is an antagonist at
the ORL-1
receptor and an agonist at a 1.1,, lc and/or 6 opioid receptor, particularly
at ail opioid receptor. In
another embodiment, a Heterocyclic-Substituted Piperidinc Compound is an
agonist at the
ORL-1 receptor and an antagonist at a !a, x and/or 8 opioid receptor,
particularly at a IA opioid
receptor. In another embodiment, a Heterocyclic-Substituted Piperidine
Compound is an
antagonist at the ORL-1 receptor and an antagonist at a R, x and/or 6 opioid
receptor,
particularly at a IA opioid receptor.
The invention also provides methods for inhibiting ORL-1 receptor function in
a cell,
comprising contacting a cell capable of expressing the ORL-1 receptor with an
amount of a
Heterocyclic-Substituted Piperidine Compound effective to inhibit ORL-1
receptor function in
the cell. This method can be adapted for use in vitro as part of an assay to
select compounds
that may be useful for treating or preventing a Condition in an animal.
Alternatively, this
method can be adapted for use in vivo, (i.e., in an animal such as a human) by
contacting a cell
in the animal with an effective amount of a Heterocyclic-Substituted
Piperidine Compound. In
one embodiment, the method is useful for treating or preventing pain in an
animal in need of
such treatment or prevention. In another embodiment, the method is useful for
treating or
preventing a memory disorder, obesity, constipation, depression, dementia, or
Parkinsonism in
an animal in need of such treatment or prevention.
The invention also relates to methods for activating ORL-1 receptor function
in a cell,
comprising contacting a cell capable of expressing the ORL-1 receptor with an
amount of a
Heterocyclic-Substituted Piperidine Compound effective to activate ORL-1
receptor function
in the cell. This method can be adapted for use in vitro as part of an assay
to select compounds
useful for treating or preventing, pain, anxiety, cough, diarrhea, high blood
pressure, epilepsy,
anorexia/cachexia, urinary incontinence, or drug abuse. Alternatively, the
method can be
adapted for use in vivo (i.e., in an animal such as a human), by contacting a
cell in the animal
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with an effective amount of a Heterocyclic-Substituted Piperidine compound. In
one
embodiment the method is useful for treating or preventing pain in an animal
in need of such
treatment or prevention. In another embodiment, the method is useful for
treating or
preventing anxiety, cough, diarrhea, high blood pressure, epilepsy,
anorexia/cachexia, urinary
incontinence, or drug abuse in an animal in need of such treatment or
prevention.
Examples of tissue comprising cells capable of expressing the ORL-1 receptor
include
but are not limited to brain, spinal cord, vas deferens, and gastrointestinal
tract tissue. Methods
for assaying cells that express the ORL-1 receptor are known in the art; for
example, see Y.
Shimohigashi et al., "Sensitivity of opioid receptor-like receptor ORLI for
chemical
modification on nociceptin, a naturally occurring nociceptive peptide," J.
Biol. Chem.
271(39):23642-23645 (1996); M. Narita eta!,, "Identification of the G-protein
coupled ORLI
receptor in the mouse spinal cord by [35S]-GTP7S binding and
immunohistochemistry," Brit. J.
Phannacol. 128:1300-1306 (1999); G. Milligan, "Principles: Extending then
utility of
[35S]GTPIFS binding assays," TIPS 14:110-112 (2003); and S. Lazareno,
"Measurement of
agonist-stimulated [35S]GTPTS binding to cell membranes," Methods in Molecular
Biology
106:231-245 (1999).
4.8 Therapeutic/Prophylactic Administration and Compositions of the Invention
Due to their activity, the Heterocyclic-Substituted Piperidine Compounds are
advantageously useful in human and veterinary medicine. As described above,
the
Heterocyclic-Substituted Piperidine Compounds are useful for treating or
preventing a
Condition in an animal in need thereof. The Heterocyclic-Substituted
Piperidine Compounds
of the invention can be administered to any animal requiring modulation of the
opioid and/or
ORL-1 receptors.
When administered to an animal, a Heterocyclic-Substituted Piperidine Compound
can
be administered as a component of a composition that comprises a
pharmaceutically acceptable
carrier or excipient. The invention compositions, which comprise a
Heterocyclic-Substituted
Piperidine Compound, can be administered orally. A Heterocyclic-Substituted
Piperidine
Compound can also be administered by any other convenient route, for example,
by infusion or
bolus injection, by absorption through epithelial or mucocutaneous linings
(e.g., oral, rectal,
and intestinal mucosa, etc.) and can be administered together with a second
therapeutically
active agent. Administration can be systemic or local. Various delivery
systems are known,
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e.g., encapsulation in liposomes, microparticles, microcapsules,
multiparticulates, capsules,
etc., and can be used to administer a Heterocyclic-Substituted Piperidine
Compound.
Methods of administration include, but are not limited to, intradermal,
intramuscular,
intraperitoneal, parenteral, intravenous, subcutaneous, intranasal, epidural,
oral, sublingual,
intracerebral, intravaginal, transdermal, rectal, by inhalation, or topical,
particularly to the ears,
nose, eyes, or skin. The method of administration is left to the discretion of
the practitioner. In
most instances, administration will result in the release of a Heterocyclic-
Substituted
Piperidine Compound into the bloodstream.
In specific embodiments, it can be desirable to administer a Heterocyclic-
Substituted
Piperidine Compound locally. This can be achieved, for example and not by way
of limitation,
by local infusion during surgery, topical application, e.g., in conjunction
with a wound dressing
after surgery, by injection, by means of a catheter, by means of a suppository
or enema, or by
means of an implant, said implant being of a porous, non-porous, or gelatinous
material,
including membranes, such as sialastic membranes, or fibers.
In certain embodiments, it can be desirable to introduce a Heterocyclic-
Substituted
Piperidine Compound into the central nervous system or gastrointestinal tract
by any suitable
route, including intraventricular, intrathecal, and epidural injection, and
enema.
Intraventricular injection can be facilitated by an intraventricular catheter,
for example,
attached to a reservoir, such as an Ommaya reservoir.
Pulmonary administration can also be employed, e.g., by use of an inhaler or
nebulizer,
and formulation with an aerosolizing agent, or via perfusion in a fluorocarbon
or synthetic
pulmonary surfactant. In certain embodiments, a Heterocyclic-Substituted
Piperidine
Compound can be formulated as a suppository, with traditional binders and
excipients such as
triglycerides.
When a Heterocyclic-Substituted Piperidine Compound of the invention is
incorporated
for parenteral administration by injection (e.g., continuous infusion or bolus
injection), the
formulation for parenteral administration can be in the form of a suspension,
solution,
emulsion in an oily or aqueous vehicle, and such formulations can further
comprise
pharmaceutically necessary additives such as one or more stabilizing agents,
suspending
agents, dispersing agents, and the like. A Heterocyclic-Substituted Piperidine
Compound of
the invention can also be in the form of a powder for reconstitution as an
injectable
formulation.
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In another embodiment, a Heterocyclic-Substituted Piperidine Compound can be
delivered in a vesicle, in particular a liposome (see Langer, Science 249:1527-
1533 (1990); and
Treat etal., Liposomes in the Therapy of Infectious Disease and Cancer 317-327
and 353-365
(1989)).
In yet another embodiment, a Heterocyclic-Substituted Piperidine Compound can
be
delivered in a controlled-release system or sustained-release system (see,
e.g., Goodson,
"Dental Applications" (pp. 115-138) in Medical Applications of Controlled
Release, Vol. 2,
Applications and Evaluation, R.S. Langer and D.L. Wise eds., CRC Press
(1984)). Other
controlled- or sustained-release systems discussed in the review by Langer,
Science 249:1527-
1533 (1990) can be used. In one embodiment, a pump can be used (Langer,
Science 249:1527-
1533 (1990); Sefton, CRC Crit. Ref Biomed. Eng. 14:201 (1987); Buchwald etal.,
Surgery
88:507 (1980); and Saudek etal., N. Engl. J. Med. 321:574 (1989)). In another
embodiment,
polymeric materials can be used (see Medical Applications of Controlled
Release (Langer and
Wise eds., 1974); Controlled Drug Bioavailability, Drug Product Design and
Performance
(Smolen and Ball eds., 1984); Ranger and Peppas, J. Macromot Sci. Rev.
Macromol. Chem.
23;61 (1983); Levy etal., Science 228:190 (1985); During et al., Ann. Neurot
25:351 (1989);
and Howard etal., J. Neurosurg. 71:105 (1989)). In yet another embodiment, a
controlled- or
sustained-release system can be placed in proximity of a target of a
Heterocyclic-Substituted
Piperidine Compound, e.g., the spinal column, brain, or gastrointestinal
tract, thus requiring
only a fraction of the systemic dose.
The invention compositions can optionally comprise a suitable amount of a
pharmaceutically acceptable excipient so as to provide the form for proper
administration to
the animal. Such a pharmaceutical excipient can be a diluent, suspending
agent, solubilizer,
binder, disintegrant, preservative, coloring agent, lubricant, and the like.
The pharmaceutical
excipient can be a liquid, such as water or an oil, including those of
petroleum, animal,
vegetable, or synthetic origin, such as peanut oil, soybean oil, mineral oil,
sesame oil, and the
like. The pharmaceutical excipient can be saline, gum acacia, gelatin, starch
paste, talc,
keratin, colloidal silica, urea, and the like. In addition, auxiliary,
stabilizing, thickening,
lubricating, and coloring agents can be used. In one embodiment, the
pharmaceutically
acceptable excipient is sterile when administered to an animal. Water is a
particularly useful
excipient when a Heterocyclic-Substituted Piperidine Compound is administered
intravenously. Saline solutions and aqueous dextrose and glycerol solutions
can also be
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employed as liquid excipients, particularly for injectable solutions. Suitable
pharmaceutical
excipients also include starch, glucose, lactose, sucrose, gelatin, malt,
rice, flour, chalk, silica
gel, sodium stearate, glycerol monostearate, talc, sodium chloride, dried skim
milk, glycerol,
propylene glycol, water, ethanol, and the like. The invention compositions, if
desired, can also
contain minor amounts of wetting or emulsifying agents, or pH buffering
agents. Specific
examples of pharmaceutically acceptable carriers and excipients that can be
used to formulate
oral dosage forms are described in the Handbook of Pharmaceutical Excipients,
American
Pharmaceutical Association (1986).
The invention compositions can take the form of solutions, suspensions,
emulsions,
tablets, pills, pellets, capsules, capsules containing liquids, powders,
sustained-release
formulations, suppositories, emulsions, aerosols, sprays, suspensions, or any
other form
suitable for use. In one embodiment, the composition is in the form of a
capsule (see, e.g.,
U.S. Patent No. 5,698,155). Other examples of suitable pharmaceutical
excipients are
described in Remington 's Pharmaceutical Sciences 1447-1676 (Alfonso R.
Gennaro ed., 19th
ed. 1995), incorporated herein by reference.
In one embodiment, the Heterocyclic-Substituted Piperidine Compounds are
formulated in accordance with routine procedures as a composition adapted for
oral
administration to human beings. A Heterocyclic-Substituted Piperidine Compound
to be orally
delivered can be in the form of tablets, capsules, gelcaps, caplets, lozenges,
aqueous or oily
solutions, suspensions, granules, powders, emulsions, syrups, or elixirs, for
example. When a
Heterocyclic-Substituted Piperidine Compound is incorporated into oral
tablets, such tablets
can be compressed, tablet triturates, enteric-coated, sugar-coated, film-
coated, multiply
compressed or multiply layered. Techniques and compositions for making solid
oral dosage
forms are described in Pharmaceutical Dosage Forms: Tablets (Lieberman,
Lachman and
Schwartz, eds., 2nd ed.) published by Marcel Dekker, Inc. Techniques and
compositions for
making tablets (compressed and molded), capsules (hard and soft gelatin) and
pills are also
described in Remington 's Pharmaceutical Sciences 1553-1593 (Arthur Osol, ed.,
16Th ed.,
Mack Publishing, Easton, PA 1980).
Liquid oral dosage forms include aqueous and nonaqueous solutions, emulsions,
suspensions, and solutions and/or suspensions reconstituted from non-
effervescent granules,
optionally containing one or more suitable solvents, preservatives,
emulsifying agents,
suspending agents, diluents, sweeteners, coloring agents, flavoring agents,
and the like.
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Techniques and composition for making liquid oral dosage forms are described
in
Pharmaceutical Dosage Forms: Disperse Systems, (Lieberman, Rieger and Banker,
eds.)
published by Marcel Dekker, Inc.
When a Heterocyclic-Substituted Piperidine Compound is to be injected
parenterally, it
can be, e.g., in the form of an isotonic sterile solution. Alternatively, when
a Heterocyclic-
Substituted Piperidine Compound is to be inhaled, it can be formulated into a
dry aerosol or
can be formulated into an aqueous or partially aqueous solution.
An orally administered Heterocyclic-Substituted Piperidine Compound can
contain one
or more agents, for example, sweetening agents such as fructose, aspartame or
saccharin;
flavoring agents such as peppermint, oil of wintergreen, or cherry; coloring
agents; and
preserving agents, to provide a pharmaceutically palatable preparation.
Moreover, where in
tablet or pill form, the compositions can be coated to delay disintegration
and absorption in the
gastrointestinal tract thereby providing a sustained action over an extended
period of time.
Selectively permeable membranes surrounding an osmotically active driving
compound are
also suitable for orally administered compositions. In these latter platforms,
fluid from the
environment surrounding the capsule is imbibed by the driving compound, which
swells to
displace the agent or agent composition through an aperture. These delivery
platforms can
provide an essentially zero order delivery profile as opposed to the spiked
profiles of
immediate release formulations. A time-delay material such as glycerol
monostearate or
glycerol stearate can also be used. Oral compositions can include standard
excipients such as
mannitol, lactose, starch, magnesium stearate, sodium saccharin, cellulose,
and magnesium
carbonate. In one embodiment, the excipients are of pharmaceutical grade.
In another embodiment, the Heterocyclic-Substituted Piperidine Compounds can
be
formulated for intravenous administration. Typically, compositions for
intravenous
administration comprise sterile isotonic aqueous buffer. Where necessary, the
compositions
can also include a solubilizing agent. A Heterocyclic-Substituted Piperidine
Compound for
intravenous administration can optionally include a local anesthetic such as
benzocaine or
prilocaine to lessen pain at the site of the injection. Generally, the
ingredients are supplied
either separately or mixed together in unit dosage form, for example, as a dry
lyophilized
powder or water free concentrate in a hermetically sealed container such as an
ampule or
sachette indicating the quantity of active agent. Where a Heterocyclic-
Substituted Piperidine
Compound is to be administered by infusion, it can be dispensed, for example,
with an infusion
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bottle containing sterile pharmaceutical grade water or saline. Where a
Heterocyclic-
Substituted Piperidine Compound is administered by injection, an ampule of
sterile water for
injection or saline can be provided so that the ingredients can be mixed prior
to administration.
A Heterocyclic-Substituted Piperidine Compound can be administered by
controlled-
release or sustained-release means or by delivery devices that are known to
those in the art.
Examples include, but are not limited to, those described in U.S. Patent Nos.:
3,845,770;
3,916,899; 3,536,809; 3,598,123; 4,008,719; 5,674,533; 5,059,595; 5,591,767;
5,120,548;
5,073,543; 5,639,476; 5,354,556; and 5,733,566, each of which is incorporated
herein by
reference. Such dosage forms can be used to provide controlled- or sustained-
release of one or
more active ingredients using, for example, hydropropylmethyl cellulose, other
polymer
matrices, gels, permeable membranes, osmotic systems, multilayer coatings,
microparticles,
multiparticulates, liposomes, microspheres, or a combination thereof to
provide the desired
release profile in varying proportions. Suitable controlled- or sustained-
release formulations
known to those in the art, including those described herein, can be readily
selected for use with
the active ingredients of the invention. The invention thus encompasses single
unit dosage
forms suitable for oral administration such as, but not limited to, tablets,
capsules, gelcaps, and
caplets that are adapted for controlled- or sustained-release.
Controlled- or sustained-release pharmaceutical compositions can have a common
goal
of improving drug therapy over that achieved by their non-controlled or non-
sustained-release
counterparts. In one embodiment, a controlled- or sustained-release
composition comprises a
minimal amount of a Heterocyclic-Substituted Piperidine Compound to treat or
prevent the
Condition or a symptom thereof in a minimum amount of time. Advantages of
controlled- or
sustained-release compositions include extended activity of the drug, reduced
dosage
frequency, and increased compliance. In addition, controlled- or sustained-
release
compositions can favorably affect the time of onset of action or other
characteristics, such as
blood levels of the Heterocyclic-Substituted Piperidine Compound, and can thus
reduce the
occurrence of adverse side effects.
Controlled- or sustained-release compositions can initially release an amount
of a
Heterocyclic-Substituted Piperidine Compound that promptly produces the
desired therapeutic
or prophylactic effect, and gradually and continually release other amounts of
the
Heterocyclic-Substituted Piperidine Compound to maintain this level of
therapeutic or
prophylactic effect over an extended period of time. To maintain a constant
level of the
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Heterocyclic-Substituted Piperidine Compound in the body, the Heterocyclic-
Substituted
Piperidine Compound can be released from the dosage form at a rate that will
replace the
amount of Heterocyclic-Substituted Piperidine Compound being metabolized and
excreted
from the body. Controlled- or sustained-release of an active ingredient can be
stimulated by
various conditions, including but not limited to, changes in pH, changes in
temperature,
concentration or availability of enzymes, concentration or availability of
water, or other
physiological conditions or compounds.
The amount of the Heterocyclic-Substituted Piperidine Compound that is
effective for
the treatment or prevention of a condition can be determined by standard
clinical techniques.
In addition, in vitro and/or in vivo assays can optionally be employed to help
identify optimal
dosage ranges. The precise dose to be employed will also depend on, e.g., the
route of
administration and the seriousness of the Condition, and can be decided
according to the
judgment of a practitioner and/or each animal's circumstances. In other
examples thereof,
variations will necessarily occur depending upon the weight and physical
condition (e.g.,
hepatic and renal function) of the animal being treated, the affliction to be
treated, the severity
of the symptoms, the frequency of the dosage interval, the presence of any
deleterious side-
effects, and the particular compound utilized, among other things.
Suitable effective dosage amounts, however, range from about 0.01mg/kg of body
weight to about 3000mWkg of body weight of the animal per day, although they
are typically
from about 0.01mg/kg of body weight to about 2500mg/kg of body weight of the
animal per
day or from about 0.01mg/kg of body weight to about 1000mg/kg of body weight
of the animal
per day. In one embodiment, the effective dosage amount is about 100mg/kg of
body weight
of the animal per day or less. In another embodiment, the effective dosage
amount ranges from
about 0.01mg/kg of body weight to about 100mg/kg of body weight of the animal
per day of a
Heterocyclic-Substituted Piperidine Compound, in another embodiment, about
0.02mg/kg of
body weight to about 50mg/kg of body weight of the animal per day, and in
another
embodiment, about 0.025mg/kg of body weight to about 20mg/kg of body weight of
the
animal per day.
Administration can be as a single dose or as a divided dose. In one
embodiment, an
effective dosage amount is administered about every 24h until the Condition is
abated. In
another embodiment, an effective dosage amount is administered about every 12h
until the
Condition is abated. In another embodiment, an effective dosage amount is
administered about
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every 8h until the Condition is abated. In another embodiment, an effective
dosage amount is
administered about every 6h until the Condition is abated. In another
embodiment, an effective
dosage amount is administered about every 4h until the Condition is abated.
The effective
dosage amounts described herein refer to total amounts administered; that is,
if more than one
Heterocyclic-Substituted Piperidine Compound is administered, the effective
dosage amounts
correspond to the total amount administered.
Where a cell capable of expressing the ORL-1 receptor is contacted with a
Heterocyclic-Substituted Piperidine Compound in vitro, the amount effective
for inhibiting or
activating the ORL-1 receptor function in a cell will typically range from
about 10-12 mol/L to
about 104 mol/L, in one embodiment, from about 1012 mol/L to about i0-5 moUL,
in another
embodiment, from about 10-12moUL to about 10-6 mol/L, and in another
embodiment, from
about 1 0-12 mol/L to about le mol/L of a solution or suspension of a
pharmaceutically
acceptable carrier or excipient. In one embodiment, the volume of solution or
suspension
comprising the Heterocyclic-Substituted Piperidine Compound will be from about
0.0111L to
about ImL. In another embodiment, the volume of solution or suspension will be
about
2004.
The Hcterocyclic-Substituted Piperidine Compounds will have a binding affinity
(K)
for the human ORL-1 receptor of about 1000 nM or less in one embodiment, or
about 500 nM
or less in another embodiment, about 100 nM or less in another embodiment,
about 50 nM or
less in another embodiment, or about 20 nM or less in another embodiment, or
about 5 nM or
less in another embodiment. The binding affinity K, can be measured in ways
known to the
art, e.g., by an assay utilizing membranes from recombinant HEK-293 cells
expressing the
ORL-1 receptor.
Typically, the Heterocyclic-Substituted Piperidine Compounds will have a K,
(nM) of
from about 300 to about 0.1 for binding to ORL-1 receptors. In one embodiment,
the
Heterocyclic-Substituted Piperidine Compounds will have a K, (nM) of from
about 300 to
about 100. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds of the
invention will have a IC, (nM) of from about 100 to about 35. In another
embodiment, the
Heterocyclic-Substituted Piperidine Compounds of the invention will have a K,
(nM) of from
about 35 to about 20. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds of the invention will have a K, (nM) of from about 20 to about 15.
In another
embodiment, the Heterocyclic-Substituted Piperidine Compounds of the invention
will have a
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K, (nM) of from about 15 to about 10. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds of the invention will have a K1 (nM) of from about 10 to
about 4. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds of the
invention will
have a K, (nM) of from about 4 to about 1. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds of the invention will have a K, (nM) of from
about 1 to
about 0.4. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds of the
invention will have a 1(1 (nM) of from about 0.4 to about 0.1 or less.
ORL-1 GTP EC50 is the concentration of a compound providing 50% of the maximal
response for the compound at an ORL-1 receptor. Heterocyclic-Substituted
Piperidine
Compounds typically will have an ORL-1 GTP EC50 (nM) of from about 5000 to
about 0.1 to
stimulate ORL-1 receptor function. In one embodiment, the Heterocyclic-
Substituted
Piperidine Compounds of the invention will have an ORL-1 GTP EC50 (nM) of from
about
5000 to about 1000. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds of the invention will have an ORL-1 GTP EC50 (nM) of from about 1000
to about
100. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
of the
invention will have an ORL-1 GTP EC50 (nM) of from about 100 to about 80. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds of the invention
will have an
ORL-1 GTP EC50 (nM) of from about 80 to about 50. In another embodiment, the
Heterocyclic-Substituted Piperidine Compounds of the invention will have an
ORL-1 GTP
EC50 (nM) of from about 50 to about 35. In another embodiment, the
Heterocyclic-Substituted
Piperidine Compounds of the invention will have an ORL-1 GTP EC50 (nM) of from
about 35
to about 15. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds of
the invention will have an ORL-1 GTP EC50 (nM) of from about 15 to about 10.
In another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have an ORL-
1 GTP
EC50 (nM) of from about 10 to about 4. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have an ORL-1 GTP EC50 (nM) of from about 4 to about
1. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have an ORL-1
GTP EC50 (nM) of from about 1 to about 0.4. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have an ORL-1 GTP EC50 (nM) of from
about 0.4 to
about 0.1 or less.
ORL-1 GTP Emax (%) is the maximal effect elicited by a compound relative to
the
effect elicited by nociceptin, a standard ORL-1 agonist. Typically, the
Heterocyclic-
Substituted Piperidine Compounds of the invention will have an ORL-1 GTP Emax
(%) of
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from about 50% to about 110%. In one embodiment, the Heterocyclic-Substituted
Piperidine
Compound Heterocyclic-Substituted Piperidine Compounds will have an ORL-1 GTP
Emax
(%) of from about 50% to about 75%. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have an ORL-1 GTP Emax (%) of from about 75% to
about 85%.
In another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have an
ORL-1 GTP Emax (%) of from about 85% to about 95%. In another embodiment, the
Heterocyclic-Substituted Piperidine Compounds will have an ORL-1 GTP Emax (%)
of from
about 95% to about 100%. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have an ORL-1 GTP Emax (%) of from about 100 to about 110% or
greater.
Where a cell capable of expressing the pt-opioid receptors is contacted with a
Heterocyclic-Substituted Piperidine Compound in vitro, the amount effective
for inhibiting or
activating the [t-opioid receptors function in a cell will typically range
from about 10-12 moUL
to about 10-4 moUL, in one embodiment, from about 10-12 moUL to about 10-5
mol/L, in
another embodiment, from about 10-12 mol/L to about 10-6 mol/L, and in another
embodiment, from about 10-12 moUL to about 10-9 moUL of a solution or
suspension of a
pharmaceutically acceptable carrier or excipient. In one embodiment, the
volume of solution
or suspension comprising the Heterocyclic-Substituted Piperidine Compound will
be from
about 0.014 to about lmL. In another embodiment, the volume of solution or
suspension will
be about 2001.tL.
The Heterocyclic-Substituted Piperidine Compounds will have a binding affinity
(K,)
for the human -opioid receptors of about 1000nM or less in one embodiment, or
about 500nM
or less in another embodiment, about 100nM or less in another embodiment,
about 50nM or
less in another embodiment, or about 20nM or less in another embodiment, or
about 5nM or
less in another embodiment.
Generally, the lower the K, value, the more effective the Heterocyclic-
Substituted
Piperidine Compounds will be at treating a Condition such as pain or diarrhea.
Typically, the
Heterocyclic-Substituted Piperidine Compounds will have a K1 (nM) of from
about 3000 to
about 0.1 for binding to 1.1-opioid receptors. In one embodiment, the
Heterocyclic-Substituted
Piperidine Compounds will have a K (nM) of from about 3000 to about 1000. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds of the invention
will have a
K, (nM) of from about 1000 to about 650. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds of the invention will have a K (nM) of from
about 650 to
about 525. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds of the
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invention will have a KJ (nM) of from about 525 to about 250. In another
embodiment, the
Heterocyclic-Substituted Piperidine Compounds of the invention will have a Ki
(nM) of from
about 250 to about 100. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds of the invention will have a Ki (nM) of from about 100 to about 10.
In another
embodiment, the Heterocyclic-Substituted Piperidine Compounds of the invention
will have a
(nM) of from about 10 to about 1. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds of the invention will have a KJ (nM) of from about Ito
about 0.1 or
less.
p GTP EC50 is the concentration of a compound providing 50% of the maximal
response for the compound at a p.-opioid receptor. Heterocyclic-Substituted
Piperidine
Compounds typically will have au GTP EC50 (nM) of from about 5000 to about 0.1
to
stimulate p.-opioid receptor function. In one embodiment, the Heterocyclic-
Substituted
Piperidine Compounds of the invention will have a p. GTP EC50 (nM) of from
about 5000 to
about 4100. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds of
the invention will have a g GTP EC50 (nM) of from about 4100 to about 3100. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds of the invention
will have a
p GTP EC50 (nM) of from about 3100 to about 2000. In another embodiment, the
Heterocyclic-Substituted Piperidine Compounds of the invention will have a p.
GTP EC50 (nM)
of from about 2000 to about 1000. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds of the invention will have a p, GTP EC50 (nM) of from
about 1000 to
about 100. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds of the
invention will have a p. GTP EC50 (nM) of from about 100 to about 10. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a p,
GTP EC50
(nM) of from about 10 to about 1. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a GTP EC50 (nM) of from about Ito about 0.4.
In another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a p.
GTP EC50
(nM) of from about 0.4 to about 0.1 or less.
p. GTP Emax (%) is the maximal effect elicited by a compound relative to the
effect
elicited by DAMGO, a standard ii agonist. Generally, the II GTP Emax (%) value
measures
the efficacy of a compound to treat or prevent a Condition such as pain or
diarrhea. Typically,
the Heterocyclic-Substituted Piperidine Compounds of the invention will have a
GTP Emax
(%) of from about 10% to about 100%. In one embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a g GTP Emax (%) of from about 10% to about
20%. In
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another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a GTP
Emax (%) of from about 20 to about 50%. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a p. GTP Emax (%) of from about 50
to about
65%. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
will have a
t GTP Emax (%) of from about 65% to about 75%. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a p. GTP Emax (%) of from about 75%
to about
88%. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
will have a
It GTP Emax (%) of from about 88% to about 100% or greater.
Typically, the Heterocyclic-Substituted Piperidine Compounds will have a K,
(nM) of
from about 10,000 to about 10 for lc receptors. In one embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have no activity. In another embodiment,
the
Heterocyclic-Substituted Piperidine Compounds will have a Ki (nM) of from
about 10,000 to
about 5000. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds will
have a KJ (nM) of from about 5000 to about 1000. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a Ki (nM) of from about 1000 to
about 500. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a 1(., (nM)
of from about 500 to about 300. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a K, (nM) of from about 300 to about 100. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a K,
(nM) of from
about 100 to about 50. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have a K, (nM) of from about 50 to about 20. In another
embodiment, the
Heterocyclic-Substituted Piperidine Compounds will have a K, (nM) of from
about 20 to about
15. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
will have a
K, (nM) of from about 15 to about 10 or less.
K GTP EC50 is the concentration of a compound providing 50% of the maximal
response for the compound at a lc receptor. Heterocyclic-Substituted
Piperidine Compounds
typically will have a x GTP EC50 (nM) of from about 10,000 to about 10 to
stimulate x opioid
receptor function. In one embodiment, the Heterocyclic-Substituted Piperidine
Compounds
will have a K GTP EC50 (nM) of from about 10,000 to about 5000. In another
embodiment, the
Heterocyclic-Substituted Piperidine Compounds will have a lc GTP EC50 (nM) of
from about
5000 to about 2000. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have a lc GTP EC50 (nM) of from about 2000 to about 1500. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a x
GTP EC50
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(nM) of from about 1500 to about 800. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a K GTP EC50 (nM) of from about 800 to about
500. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a K GTP
EC50 (nM) of from about 500 to about 300. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a lc GTP EC50 (nM) of from about
300 to about
100. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
will have a
K GTP EC50 (nM) of from about 100 to about 50. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a K GTP EC50 (nM) of from about 50
to about 25.
In another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a K
GTP EC50 (nM) of from about 25 to about 10 or less.
K GTP Emax (%) is the maximal effect elicited by a compound relative to the
effect
elicited by U69,593. Typically, the Heterocyclic-Substituted Piperidine
Compounds of the
invention will have a K GTP Emax (%) of from about 15% to about 100%. In one
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a K
GTP Emax
(%) of from about 15% to about 30%. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a K GTP Emax (%) of from about 30 to about 40%.
In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a K GTP
Emax (%) of from about 40 to about 45%. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a K GTP Emax (%) of from about 45%
to about
75%. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
will have a
K GTP Emax (%) of from about 75% to about 90%. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a lc GTP Emax (%) of from about 90%
to about
100% or greater.
Typically, the Heterocyclic-Substituted Piperidine Compounds will have a K,
(nM) of
from about 10,000 to about 10 for 6 receptors. In one embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have no activity. In another embodiment,
the
Heterocyclic-Substituted Piperidine Compounds will have a K, (nM) of from
about 10,000 to
about 9000. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds will
have a K, (nM) of from about 9000 to about 7500. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a K1 (nM) of from about 7500 to
about 6500. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a K, (nM)
of from about 6500 to about 5000. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a K, (nM) of from about 5000 to about 3000. In
another
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embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a Ki
(nM) of from
about 3000 to about 2500. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have a Ki (nM) of from about 2500 to about 1000. In another
embodiment,
the Heterocyclic-Substituted Piperidine Compounds will have a K, (nM) of from
about 1000 to
about 500. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds will
have a K, (nM) of from about 500 to about 350. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a K1 (nM) of from about 350 to
about 250. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a K, (nM)
of from about 250 to about 100. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a K, (nM) of from about 100 to about 10 or
less.
6 GTP EC50 is the concentration of a compound providing 50% of the maximal
response for the compound at a 6 receptor. Heterocyclic-Substituted Piperidine
Compounds
typically will have a 6 GTP EC50 (nM) of from about 10,000 to about 10 to
stimulate 6 opioid
receptor function. In one embodiment, the Heterocyclic-Substituted Piperidinc
Compounds
will have a 6 GTP EC50 (nM) of from about 10,000 to about 1000. In another
embodiment, the
Heterocyclic-Substituted Piperidine Compounds will have a 8 GTP EC50 (nM) of
from about
1000 to about 100. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have a 6 GTP EC50 (nM) of from about 100 to about 90. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a 6
GTP EC50
(nM) of from about 90 to about 50. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a 6 GTP EC50 (nM) of from about 50 to about 25.
In another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a 6
GTP EC50
(nM) of from about 25 to about 10 or less.
8 GTP Emax (%) is the maximal effect elicited by a compound relative to the
effect
elicited by met-enkephalin. Typically, the Heterocyclic-Substituted Piperidine
Compounds of
the invention will have a 6 GTP Emax (%) of from about 10% to about 110%. In
one
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a 8
GTP Emax (%)
of from about 10% to about 30%. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a 6 GTP Emax (%) of from about 30% to about
50%. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a 6 GTP
Emax (%) of from about 50% to about 75%. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a 6 GTP Emax (%) of from about 75%
to about
90%. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
will have a
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6 GTP Emax (%) of from about 90% to about 100%. In another embodiment, the
Heterocyclic-Substituted Piperidine Compounds will have a 6 GTP Emax (%) of
from about
100% to about 110% or greater.
The Heterocyclic-Substituted Piperidine Compounds can be assayed in vitro or
in vivo
for the desired therapeutic or prophylactic activity prior to use in humans.
Animal model
systems can be used to demonstrate safety and efficacy.
The invention methods for treating or preventing a Condition in an animal in
need
thereof can further comprise co-administering to the animal being administered
a Heterocyclic-
Substituted Piperidine Compound (i.e., a first therapeutic agent) a second
therapeutic agent. In
one embodiment, the second therapeutic agent is administered in an effective
amount.
An effective amount of the second therapeutic agent will be known to the art
depending
on the agent. However, it is well within the skilled artisan's purview to
determine the second
therapeutic agent's optimal effective-amount range. In one embodiment of the
invention,
where a second therapeutic agent is administered to an animal for treatment of
a Condition
(e.g., pain), the minimal effective amount of the Heterocyclic-Substituted
Piperidine
Compound will be less than its minimal effective amount would be where the
second
therapeutic agent is not administered. In this embodiment, the Heterocyclic-
Substituted
Piperidine Compound and the second therapeutic agent can act synergistically
to treat or
prevent a Condition.
The second therapeutic agent can be, but is not limited to, an opioid agonist,
a non-
opioid analgesic, a non-steroidal anti-inflammatory agent, an antimigraine
agent, a Cox-I1
inhibitor, a 5-lipoxygenase inhibitor, an anti-emetic, a 0-adrenergic blocker,
an anticonvulsant,
an antidepressant, a Ca2+-channel blocker, an anti-cancer agent, an agent for
treating or
preventing UI, an agent for treating or preventing anxiety, an agent for
treating or preventing a
memory disorder, an agent for treating or preventing obesity, an agent for
treating or
preventing constipation, an agent for treating or preventing cough, an agent
for treating or
preventing diarrhea, an agent for treating or preventing high blood pressure,
an agent for
treating or preventing epilepsy, an agent for treating or preventing
anorexia/cachexia, an agent
for treating or preventing drug abuse, an agent for treating or preventing an
ulcer, an agent for
treating or preventing IBD, an agent for treating or preventing IBS, an agent
for treating or
preventing addictive disorder, an agent for treating or preventing Parkinson's
disease and
parkinsonism, an agent for treating or preventing a stroke, an agent for
treating or preventing a
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seizure, an agent for treating or preventing a pruritic condition, an agent
for treating or
preventing psychosis, an agent for treating or preventing Huntington's chorea,
an agent for
treating or preventing ALS, an agent for treating or preventing a cognitive
disorder, an agent
for treating or preventing a migraine, an agent for treating, preventing or
inhibiting vomiting,
an agent for treating or preventing dyskinesia, an agent for treating or
preventing depression, or
any mixture thereof.
Examples of useful opioid agonists include, but are not limited to,
alfentanil,
allylprodinc, alphaprodinc, anilcridinc, benzylmorphine, bezitramidc,
buprcnorphinc,
butorphanol, clonitazene, codeine, desomorphine, dextromoramide, dezocine,
diampromide,
diamorphone, dihydrocodeine, dihydromorphine, dimcnoxadol, dimephcptanol,
dimethylthiambutenc, dioxaphetyl butyrate, dipipanone, eptazocinc,
ethoheptazine,
ethylmethylthiambutene, ethylmorphine, etonitazene, fentanyl, heroin,
hydrocodone,
hydromorphonc, hydroxypethidine, isomcthadonc, ketobemidone, levorphanol,
levophenacylmorphan, lofentanil, meperidine, meptazinol, metazocine,
methadone, metopon,
morphine, myrophine, nalbuphine, narceine, nicomorphine, norlevorphanol,
normethadone,
nalorphine, normorphine, norpipanone, opium, oxycodone, oxymorphone,
papaveretum,
pentazocine, phenadoxone, phenomorphan, phenazocine, phenoperidine,
piminodine,
piritramide, proheptazine, promedol, properidine, propiram, propoxyphene,
sufentanil, tilidine,
tramadol, pharmaceutically acceptable derivatives thereof, or any mixture
thereof.
in certain embodiments, the opioid agonist is selected from codeine,
hydromotphone,
hydrocodone, oxycodone, dihydrocodeine, dihydromorphine, morphine, tramadol,
oxymorphone, pharmaceutically acceptable derivatives thereof, or any mixture
thereof.
Examples of useful non-opioid analgesics include, but are not limited to, non-
steroidal
anti-inflammatory agents, such as aspirin, ibuprofen, diclofenac, naproxen,
benoxaprofen,
flurbiprofen, fenoprofen, flubufen, ketoprofen, indoprofen, piroprofen,
carprofen, oxaprozin,
pramoprofen, muroprofen, trioxaprofen, suprofen, aminoprofen, tiaprofenic
acid, fluprofen,
bucloxic acid, indomethacin, sulindac, tolmetin, zomepirac, tiopinac,
zidometacin, acernetacin,
fcntiazac, clidanac, oxpinac, mcfcnamic acid, meclofenatnic acid, flufcnamic
acid, niflumic
acid, tolfenamic acid, diflurisal, flufenisal, piroxicam, sudoxicam, isoxicam,
a
pharmaceutically acceptable derivative thereof, or any mixture thereof. Other
suitable
non-opioid analgesics include the following, non-limiting, chemical classes of
analgesic,
antipyretic, nonsteroidal anti-inflammatory drugs: salicylic acid derivatives,
including aspirin,
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sodium salicylate, choline magnesium trisalicylate, salsalate, diflunisal,
salicylsalicylic acid,
sulfasalazine, and olsalazin; para-aminophenol derivatives including
acetaminophen and
phenacetin; indole and indene acetic acids, including indomethacin, sulindae,
and etodolac;
heteroaryl acetic acids, including tolmetin, diclofenac, and ketorolac;
anthranilic acids
(fenamates), including mefenamic acid and meclofenamic acid; enolic acids,
including
oxicams (piroxicam, tenoxicam), and pyrazolidinediones (phenylbutazone,
oxyphenthartazone); alkanones, including nabumetone; a pharmaceutically
acceptable
derivative thereof; or any mixture thereof. For a more detailed description of
the NSAIDs, see
Paul A. Insel, Analgesic-Antipyretic and Anti-inflammatory Agents and Drugs
Employed in the
Treatment of Gout, in Goodman & Gilman 's The Pharmacological Basis qf
Therapeutics
617-57 (Perry B. Molinhoff and Raymond W. Ruddon eds., 9th ed 1996); and Glen
R. Hanson,
Analgesic, Antipyretic and Anti-Inflammatory Drugs in Remington: The Science
and Practice
of Pharmacy Vol II 1196-1221 A.R. Gennaro ed. 19th ed. 1995), which are hereby
incorporated by reference in their entireties.
Examples of useful Cox-II inhibitors and 5-lipoxygenase inhibitors, as well as
combinations thereof, arc described in U.S. Patent No. 6,136,839, which is
hereby incorporated
by reference in its entirety. Examples of useful Cox-II inhibitors include,
but are not limited
to, celecoxib, DUP-697, flosulide, meloxicam, 6-1VENA, L-745337, rofecoxib,
nabumetone,
nimesulide, NS-398, SC-5766, T-614, L-768277, GR-253035, JTE-522, RS-57067-
000, SC-
58125, SC-078, PD-138387, NS-398, flosulide, D-1367, SC-5766, PD-164387,
etoricoxib,
valdecoxib, parecoxib, a pharmaceutically acceptable derivative thereof, or
any mixture
thereof.
Examples of useful antimigraine agents include, but are not limited to,
alpiropride,
bromocriptine, dihydroergotamine, dolasetron, ergocomine, ergocominine,
ergocryptine,
ergonovine, ergot, ergotamine, flumedroxone acetate, fonazine, ketanserin,
lisuride,
lomerizine, methylergonovine, methysergide, metoprolol, naratriptan,
oxetorone, pizotyline,
propranolol, risperidone, rizatriptan, sumatriptan, timolol, trazodone,
zolmitriptan, a
pharmaceutically acceptable derivative thereof, or any mixture thereof.
Examples of useful anticonvulsants include, but are not limited to,
acetylpheneturide,
albutoin, aloxidonc, aminoglutethimide, 4-amino-3-hydroxybutyric acid,
atrolactamidc,
beclamide, buramate, calcium bromide, carbamazepine, cinromide, clomethiazole,
clonazepam, decimcmide, dicthadionc, dimethadionc, doxenitroin, cterobarb,
ethadione,
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ethosuximide, ethotoin, felbamate, fluoresone, gabapentin, 5-
hydroxytryptophan, lamotrigine,
magnesium bromide, magnesium sulfate, mephenytoin, mephobarbital, metharbital,
methetoin,
methsuximide, 5-methyl-5-(3-phenanthry1)-hydantoin, 3-methyl-5-
phenylhydantoin,
narcobarbital, nimetazepam, nitrazepam, oxcarbazepine, paramethadione,
phenacemide,
phenetharbital, pheneturide, phenobarbital, phensuximide,
phenylmethylbarbituric acid,
phenytoin, phethenylate sodium, potassium bromide, pregabaline, primidone,
progabide,
sodium bromide, solanum, strontium bromide, suclofenide, sulthiame,
tetrantoin, tiagabine,
topiramate, trimethadione, valproic acid, valpromide, vigabatrin, zonisamide,
a
pharmaceutically acceptable derivative thereof, or any mixture thereof.
Examples of useful Ca2+-channel blockcrs include, but are not limited to,
beptidil,
clentiazem, diltiazem, fendiline, gallopamil, mibcfradil, prenylaminc,
scmotiadil, tcrodiline,
verapamil, amlodipine, aranidipine, bamidipine, benidipine, cilnidipine,
efonidipine,
elgodipine, felodipine, isradipinc, lacidipinc, lcrcanidipine, manidipinc,
nicardipinc, nifedipine,
nilvadipine, nimodipine, nisoldipine, nitrendipine, cinnarizine, flunarizine,
lidoflazine,
lomerizine, bencyclane, etafenone, fantofarone, perhexiline, a
pharmaceutically acceptable
derivative thereof, or any mixture thereof.
Examples of useful therapeutic agents for treating or preventing Ul include,
but are not
limited to, propantheline, imipramine, hyoscyamine, oxybutynin, dicyclomine, a
pharmaceutically acceptable derivative thereof, or any mixture thereof.
Examples of useful therapeutic agents for treating or preventing anxiety
include, but are
not limited to, benzodiazepines, such as alprazolam, brotizolam,
chlordiazepoxide, clobazam,
clonazepam, clorazepate, demoxepam, diazepam, estazolam, flumazenil,
flurazepam,
halazepam, lorazepam, midazolam, nitrazepam, nordazepam, oxazepam, prazepam,
quazepam,
temazepam, and triazolam; non-benzodiazepine agents, such as buspirone,
gepirone,
ipsapirone, tiospirone, zolpicone, zolpidem, and zaleplon; tranquilizers, such
as barbituates,
e.g., amobarbital, aprobarbital, butabarbital, butalbital, mephobarbital,
methohexital,
pentobarbital, phenobarbital, secobarbital, and thiopental; propanediol
carbamates, such as
mcprobamatc and tybamate; a pharmaceutically acceptable derivative thereof; or
any mixture
thereof.
Examples of useful therapeutic agents for treating or preventing diarrhea
include, but
are not limited to, diphenoxylate, loperamide, a pharmaceutically acceptable
derivative thereof,
or any mixture thereof.
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Examples of useful therapeutic agents for treating or preventing epilepsy
include, but
are not limited to, carbamazepine, ethosuximide, gabapentin, lamotrigine,
phenobarbital,
phenytoin, primidone, valproic acid, trimethadione, benzodiazepines, y vinyl
GABA,
acetazolamide, felbamate, a pharmaceutically acceptable derivative thereof, or
any mixture
thereof.
Examples of useful therapeutic agents for treating or preventing drug abuse
include, but
are not limited to, methadone, desipramine, amantadine, fluoxetirte,
buprenorphine, an opiate
agonist, 3-phenoxypyridine, levomethadyl acetate hydrochloride, serotonin
antagonists, a
pharmaceutically acceptable derivative thereof, or any mixture thereof.
Examples of non-steroidal anti-inflammatory agents, 5-lipoxygenase inhibitors,
anti-
emetics, 0 adrenergic blockers, antidepressants, and anti-cancer agents are
known in the art and
can be selected by those skilled in the art. Examples of useful therapeutic
agents for treating or
preventing memory disorder, obesity, constipation, cough, high blood pressure,
anorexia/cachexia, an ulcer, IBD, IBS, addictive disorder, Parkinson's disease
and
parkinsonism, a stroke, a seizure, a pruritic condition, psychosis,
Huntington's chorea, ALS, a
cognitive disorder, a migraine, dyskinesia, depression, and/or treating,
preventing or inhibiting
vomiting include those that are known in the art and can be selected by those
skilled in the art.
A Heterocyclic-Substituted Piperidine Compound and the second therapeutic
agent
combined can act either additively or synergistically to treat the same
condition, or they may
act independently of each other such that the Heterocyclic-Substituted
Piperidine Compound
treats or prevents a first Condition and the second therapeutic agent treats
or prevents a second
Condition. In one embodiment, a Heterocyclic-Substituted Piperidine Compound
is
administered concurrently with a second therapeutic agent as a single
composition comprising
an effective amount of a Heterocyclic-Substituted Piperidine Compound and an
effective
amount of the second therapeutic agent. Alternatively, a composition
comprising an effective
amount of a Heterocyclic-Substituted Piperidine Compound and a second
composition
comprising an effective amount of the second therapeutic agent are
concurrently administered.
In another embodiment, an effective amount of a Heterocyclic-Substituted
Piperidine
Compound is administered prior or subsequent to administration of an effective
amount of the
second therapeutic agent. In this embodiment, the Heterocyclic-Substituted
Piperidine
Compound is administered while the second therapeutic agent exerts its
therapeutic effect, or
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the second therapeutic agent is administered while the Heterocyclic-
Substituted Piperidine
Compound exerts its therapeutic effect for treating or preventing a Condition.
A composition of the invention is prepared by a method comprising admixing a
Heterocyclic-Substituted Piperidine Compound or a pharmaceutically acceptable
derivative
thereof with a pharmaceutically acceptable carrier or excipient. Admixing can
be
accomplished using methods known for admixing a compound (or derivative) and a
pharmaceutically acceptable carrier or excipient. In one embodiment, the
Heterocyclic-
Substituted Piperidinc Compound is present in the composition in an effective
amount.
4.9 Kits
The invention further provides kits that can simplify the handling and
administration of
a Heterocyclic-Substituted Piperidine Compound to an animal.
A typical kit of the invention comprises a unit dosage form of a Heterocyclic-
Substituted Piperidine Compound. In one embodiment, the unit dosage form
comprises a first
container, which can be sterile, containing an effective amount of a
Heterocyclic-Substituted
Piperidine Compound and a pharmaceutically acceptable carrier or excipient.
The kit can
further comprise a label or printed instructions instructing the use of the
Heterocyclic-
Substituted Piperidine Compound to treat or prevent a Condition. The kit can
further comprise
a unit dosage form of a second therapeutic agent, for example, a second
container containing
an effective amount of the second therapeutic agent and a pharmaceutically
acceptable carrier
or excipient. In another embodiment, the kit comprises a container containing
an effective
amount of a Heterocyclic-Substituted Piperidine Compound, an effective amount
of a second
therapeutic agent and a pharmaceutically acceptable carrier or excipient.
Examples of second
therapeutic agents include, but are not limited to, those listed above.
Kits of the invention can further comprise a device that is useful for
administering the
unit dosage forms. Examples of such a device include, but are not limited to,
a syringe, a drip
bag, a patch, an inhaler, and an enema bag.
The following examples are set forth to assist in understanding the invention
and
should not be construed as specifically limiting the invention described and
claimed herein.
Such variations of the invention, including the substitution of all
equivalents now known or
later developed, that would be within the purview of those skilled in the art,
and changes in
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formulation or changes in experimental design, are to be considered to fall
within the scope of
the invention incorporated herein.
5. EXAMPLES
The following examples illustrate various aspects of the invention, and are
not to be
construed to limit the claims in any manner whatsoever.
5.1 Example 1
Br
0 (1)
__________________________________________ )1, 4111411
H = HCI Base
AA AC
7-Bromo-accnaphthalene (A_B) was prepared according to a literature method
known to
those in the art (Bachmann et al., "Synthesis of 4,4-Methylenephenanthrene,"
J.A.C.S. 63:204-
206 (1941)). The compound of formula AB was added to 20mL of acctonitrile.
Thereafter,
the mixture was added, in one portion, to a 100mL solution of the compound of
formula AA,
piperidine-4-one (1.20g, 7.8mmol, Sigma-Aldrich, St. Louis, MO), and DIEA
(4.1mL,
23.4mmol, Sigma-Aldrich). This mixture was heated to reflux for 48h, cooled to
about 25 C,
and adsorbed onto silica gel to provide residues that were chromatographed
with a silica gel
column eluted with a gradient of from 100%:0% Et0Ac:Me0H to 0%:100% Et0Ac:Me0H
(COMBIFLASH, Teledyne Isco, Inc., Lincoln, NE). The product fractions were
combined and
concentrated to dryness under reduced pressure to provide 1.31g of the
compound of formula
AC, determined to be about 90% pure by liquid chromatography/mass spectrometry
("LC/MS") (yield 44.3%).
The identity of the compound of formula AC, 1-(1,2-dihydroacenaphthylen-
l-yl)piperidin-4-one, was confirmed using 1H NMR and LC/MS.
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Compound AC: -1H NMR: SH (400 MHz, Me0D): 7.68 (2H, m), 7.47 (4H, m), 5.04
(111, m), 3.39 (21-1, m), 2.86 (2H, m), 2.70 (2H, m), 2.45 (4H, m); LC/MS
(90.1%, h = 2.434
min), m/z = 252.2 [M + (Calc: 251.3).
5.2 Example 2
H3C
H 0 \N 0
*NHNH2
0 = /
N
H2 N
a I*0 N 0
0 0
N NH2 c3c,A)(c, (1)
t o --310.- HCI
BA BB 5 29
1-Cyclooctylpiperidin-4-one (compound of formula.13_.L)11 was purchased from
Vasudha
Pharma Chem LTD (Hyderabad, Andhra Pradesh, India).
The compound of formula BA (10.00g, 48.0mmol) and o-phenylenediamine (10.38g,
96.0mmol, Sigma-Aldrich) were suspended in 200mL of methylene chloride. To
this mixture,
sodium triacetoxyborohydride (NaBH(OAc)3, 30.42g, 144.0mmol, Acros Organics,
Geel,
Belgium) and acetic acid (10mL) were added. These ingredients were stirred at
a temperature
of about 25 C for 24h after which the reaction mixture was extracted 10 times
with about
200mL of water each time. The organic layer was dried (MgSO4), filtered, and
concentrated to
dryness under reduced pressure to provide 9.48g of a compound of formula BB as
a light
orange oil (yield 65.6%).
The identity of the compound of formula BB, NI-(1-cyclooctylpiperidin-4-
yl)benzene-
1,2-diamine, was confirmed using LC/MS.
Compound BB: LC/MS (95%, tr = 1.832 min), rn/z = 301.1 [M + Hi- (Cale: 302.2).
The compound of formula BB (14.40g, 47.84mmol) was added to 100mL of dry DCE.
This mixture was added dropwisc to a solution of malonyl dichloride (10.1g,
71.77mmol,
Sigma-Aldrich) in 200mL of dry DCE. The resulting mixture was magnetically
stirred under
an argon atmosphere at a temperature of about 25 C for lh. The mixture was
then warmed to
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60 C for 10h. The mixture was then cooled to a temperature of about 25 C and
the solvent was
removed under reduced pressure. The remaining material was added to 300mL of
methanol
and adsorbed onto silica gel to provide residues that were chromatographed
with a silica gel
column eluted with a gradient of from 100%:0% Et0Ac:Me0H to 0%:100%
Et0Ac:Me0H.
The product fractions were combined and concentrated to dryness under reduced
pressure to
provide 10.0g of Heterocyclic-Substituted Piperidine Compound 5 as a light
orange solid
(yield 58%).
The identity of Heterocyclic-Substituted Piperidine Compound 5 ,
1 -(1-cyc looctylpiperidin-4-y1)-1H-benzo [b] [1,4]diazepine-2,4(3H,5H)-dione,
was confirmed
using 11-1 NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 5: 1H NMR: oil (400 MHz, Me0D):
7.43 (1H, m), 7.26 (211, m), 7.14 (1H, m), 4.17 (1H, m), 3.37 (4H, m), 3.10-
2.99 (3H, m), 2.69
(211, m), 2.02 (2H, m), 1.87-1.46 (1411, m); LC/MS (100%, tr = 4.944 min),
nilz = 370.4 [M +
H] (Calc: 369.5).
Heterocyclic-Substituted Piperidine Compound 5 (1g) was added to 20mL of
methanol.
To this was added leq of 4M HC1 in 1,4-dioxane. The solvent was removed under
reduced
pressure and the resulting solid was triturated, washed with methanol, and
filtered. This
material was dried under reduced pressure to provide 0.55g of the
hydrochloride of
Heterocyclic-Substituted Piperidine Compound 5 (yield 50%).
Heterocyclic-Substituted Piperidine Compound 5 (60mg, 0.163mmol) and K2COA
(45mg, 0.036mmol) were added to 2mL DMF at a temperature of about 25 C. To
this was
added methyl iodide (204, 0.32mmol, TCI America, Portland, OR) and the mixture
was
stirred for 16h at a temperature of about 25 C. Thereafter, water was added to
the mixture
which was then extracted with Et0Ac. The organic layer was washed with water,
dried
(Na2SO4), filtered, and concentrated to dryness under reduced pressure. The
residue was
chromatographed with a silica gel column eluted with a gradient of from
100%:0%
chloroform:Me0H to 10%:90% chloroform:McOH and the product fractions were
combined
and concentrated to dryness under reduced pressure. The residue was added to
ImL of Et0Ac.
To this was added 0.5mL of 4M HC1 in EtO.A.c. The mixture was concentrated to
dryness
under reduced pressure and the resulting solid triturated with 10:1 Et0Ac:Me0H
and filtered.
The residue was concentrated to dryness under reduced pressure to provide
9.8mg of the
hydrochloride of Heterocyclic-Substituted Piperidine Compound 29 (yield
14.3%).
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The identity of Heterocyclic-Substituted Piperidine Compound 29,
1-(1-cyclooctylpiperidin-4-y1)-5-methy1-1H-benzo[b][1,4]diazepine-2,4(3H,5H)-
dione, was
confirmed using 'H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 29: NMR:
On (400 MHz, DMS0-
d6): 9.74 ( I H, brs), 7.55 (2H, m), 7.41 (1H, m), 7.35 (1H, m), 4.32 (IH, m),
3.41 (2H, d,
J=8.0Hz), 3.31 (3H, s), 3.15 (2H, m), 2.98 (2H, d, J-8.0Hz), 2.63 (1H, m),
2.45 (1H, m), 2.09
(1H, m), 1.94 (2H, m), 1.31-1.70 (15H, cm); LC/MS (100%, tr = 1.89 min), iii/z
= 384.0 uvi +
Hr (Cale: 383).
H
N
(A
0 )
CI N
N CI NH
a
C1i)
0 0 N 2HCI
CI)LACI
N NH2 Ail
Pt/C H2 IV, NH2 BA
-0- a
CI NO2 CI NH2
BC BD BE 30
The dihydrochloride of Heterocyclic-Substituted Piperidine Compound 30 was
prepared as described above except that 5-chloropyridine-2,3-diamine (BD) was
used in place
of o-phenylenediamine. The identity of Heterocyclic-Substituted Piperidine
Compound 30,
8-chloro-1-(1-cyclooctylpiperidin-4-y1)-1H-pyrido[3,2-b][1,4]diazepine-
2,4(3H,511)-dione,
was confirmed using '1-INMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 30: Ili NMR: on (300 MHz, CD30D):
8.37 (1H, d, J=2.4Hz), 8.02 (1H, d, J=2.4Hz ), 4.21 (1H, m), 3.56-3.41 (4H,
m), 3.19-3.13 (3H,
m), 2.88-2.65 (2H, m), 2.21-1.52 (16H, m), iri/z = 405 [M + HJ (Calc: 404.9).
The compound of formula BD was prepared as follows. A mixture of the compound
of
formula BC (5-chloro-3-nitropyridin-2-amine, 1736mg, lOmmol, Sigma-Aldrich)
and 2%
platinum on carbon (200mg, Sigma-Aldrich) in methanol (20mL) was stirred under
a hydrogen
atmosphere at a temperature of about 25 C for 2h. After filtering off the Pt/C
and washing
with Et0Ac, the filtrate was concentrated under reduced pressure. The
resulting solid was
washed with 1:1 n-hexanc:diethyl ether, filtered, washed with n-hcxanc, and
dried under
reduced pressure at a temperature of about 25 C to provide the compound of
formula BD as a
pale brown solid (yield 88%).
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The identity of the compound of formula BD was confirmed using 11-1 NMR.
Compound BD: 1H NMR: 811(300 MHz, DMS0): 7.21 (1H, d, J=1.2Hz), 6.69 (1H, d,
J=1.2Hz), 5.57 (211, m), 5.01 (2H, m).
0
N NH
Br===='GC
(3=
2HCI
31
The dihydrochloride of Heterocyclic-Substituted Piperidine Compound 31 was
prepared as described above except that 5-bromopyridine-2,3-diamine was used
in place of
5-chloropyridine-2,3-diamine. The identity of Heterocyclic-Substituted
Piperidine Compound
31, 8-bromo-1-(1-cyclooetylpiperidin-4-y1)-1H-pyrido[3,2-b][ I ,4]diazepine-
2,4(3H,5H)-dione,
was confirmed using 1H NMR and LC/MS.
Hctcrocyclic-Substituted Piperidinc Compound 31: 1H NMR: SH (300 MHz, CD30D):
8.45 (111, d, J=2.1Hz), 8.12 (1H, d, J=2.1Hz ), 4.19(111, m), 3.52-3.41 (4H,
m), 3.19-3.13 (3H,
m), 2.69 (2H, m), 2.20-1.48 (16H, m), m/z = 450.9 [M + (Calc: 449.4).
5.3 Example 3
In a manner similar to Example 2, the following Heterocyclic-Substituted
Piperidine
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N 0
N 0
6
Heterocyclic-Substituted Piperidine Compound 6 was prepared by using oxalyl
dichloride (8.37g, 66.44mmol, Sigma-Aldrich) in place of malonyl dichloride.
The identity of
Heterocyclic-Substituted Piperidine Compound 6, 1-(1-cyclooctylpiperidin-4-
yl)quinoxalinc-
2,3(1H,4H)-dione, was confirmed using 'NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 6: 1H NMR: öll (400 MHz, Me0D):
7.81 (1H, m), 7.31 (3H, m), 3.57 (3H, m), 3.43 (211, m), 3.22 (211, m), 2.17
(4H, m), 1.99 (4H,
m), 1.78-1.46 (1411, m); LC/MS (100%, t, = 5.011 min), in/z = 356.3 [M + H]
(Calc: 355.5).
H
N
a 0
7
Heterocyclic-Substituted Piperidine Compound 7 was prepared by using
2,2-diethylmalonyl dichloride (Sigma-Aldrich) in place of malonyl dichloride.
The identity of
Heterocyclic-Substituted Piperidine Compound 7, 1-(1-cyclooctylpiperidin-4-y1)-
3,3-diethy1-
1H-bcrizo[b][1,4]diazepine-2,4(3H,5H)-dione, was confirmed using 1H NMR and
LC/MS.
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Heterocyclic-Substituted Piperidine Compound 7: ill NMR: SH (400 MHz, Me0D):
7.30 (2H, m), 6.99 (1H, m), 6.80 (1H, m), 3.72 (1H, m), 3.50 (3H, m), 2.41
(2H, m), 2.21 (1H,
m), 2.10-1.41 (21H, m), 1.10 (6H, m); LC/MS (96.9%, tr = 8.655 min), in/z =
426.3 [M + fir
(Calc: 425.6).
5.4 Example 4
0
The compound of formula CA, 1-(4-isopropylcyclohexyl)piperidin-4-one, was
prepared according to the procedure in S. Kolczewski etal., J. Med. Chem.
46:255 (2003).
In a manner similar to Examples 2 and 3, the following Heterocyclic-
Substituted
Piperidine Compounds were prepared from the compound of formula CA:
H n
N 0
9
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The identity of Heterocyclic-Substituted Piperidine Compound 9,
1-(1-(4-isopropylcyclohexyl)piperidin-4-yl)quinoxaline-2,3(1H,4H)-dione, was
confirmed
using 1HNMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 9: 1H NMR: 6ii (400 MHz, Me0D):
7.77 (1H, m), 7.29 (3H, m), 3.70 (2H, m), 3.38 (2H, m), 3.26 (3H, m), 2.21
(1H, m), 2.13-1.90
(5H, m), 1.78 (2H, m), 1.55 (3H, m), 1.24(211, m), 0.98 (6H, m); LC/MS (100%,
t, = 5.446
min), ni/z = 370.4 [M + (Cale: 369.5).
H 0
N---c
0
The identity of Heterocyclic-Substituted Piperidine Compound 10, 1-(1-(4-
isopropylcyclohexyl)piperidin-4-y1)-1H-benzo[b][1,4]diazepine-2,4(3H,5H)-
dione, was
confirmed using 11-1NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 10: IHNMR: SH (400 MHz, McOD):
7.57 (1H, m), 7.39 (2H, m), 7.26 (1H, m), 4.29 (1H, m), 3.59 (2H, m), 3.48
(1H, m), 3.30-3.07
(4H, m), 2.89 (2H, m), 2.17 (3H, m), 1.91 (2H, m), 1.72 (111, m), 1.51 (2H,
m), 1.18 (211, m),
0.95 (6H, m); LC/MS (100%, tr = 5.538 min), tn/z = 384.3 [M + li] (Calc:
383.5).
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N
N
a 0
1 1
The identity of Heterocyclic-Substituted Piperidine Compound 11, 3,3-diethyl-1-
(1-(4-
isopropylcyclohexyppiperidin-4-y1)-1H-benzo[b][1,4]diazepine-2,4(3H,5H)-dione,
was
confirmed using NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound H: 1HNMR: ofi (400 MHz, Me0D):
7.31 (2H, m), 7.00 (1H, m), 6.81 (1H, m), 3.81-3.51 (2H, m), 3.45 (1H, m),
3.28 (2H, m), 2.41
(1H, m), 2.20 (2H, s), 2.93 (7H, m), 2.78 (3H, m), 2.59 (3H, m), 1.18 (8H, m),
0.99 (7H, m);
LC/MS (100%, tr = 9.045 min), m/z = 440.4 [M + (Calc: 439.6).
5.5 Example 5
In a manner similar to Example 3, the following Heterocyclic-Substituted
Piperidine
Compound was prepared from the compound of formula AC:
N
N 0
12
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The identity of Heterocyclic-Substituted Piperidine Compound 12,
1-(1-(1,2-dihydroacenaphthylen-l-yl)piperidin-4-y1)quinoxaline-2,3(1H,4H)-
dione, was
confirmed using 114 NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 12: Ili NMR: 611(400 MHz, Me0D):
7.83 (2H, m), 7.65 (3H, m), 7.49 (1H, m), 7.38 (1H, m), 7.16 (3H, m), 6.51
(1H, m), 3.79 (2H,
m), 3.57-3.31 (2H, m), 3.28-3.03 (6H, m), 1.91 (2H, m); LC/MS (100%, tr =
5.009 min), ni/z =
356.3 [M + HI- (Calc: 355.5).
5.6 Example 6
O NH2
NO2
......, 41, NO20
,
i,N,,2.õ
,., F F F NH
N 2) RhiA1203 N
(Lit I b)
a __________________________________________ . ...),,,
õ.
BA DA
a
0
H
NNH2
41
11 .
N DI
F F NH H2, Ra-Ni
0
0 0
01"'-''...".......C1 .........-N "..**
a ., _____________________________________
a
lk D_C
The compound of formula BA was converted to the compound of formula DA,
4-amino-N-cyclooctylpiperidine, by procedures known to those in the art, e.g.,
as described in
International PCT Publication No. WO 2005/075459 Al of Euro-Celtique S.A.
published
August 18, 2005.
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The compound of formula DA (2.00g, 9.52mmol) was dissolved in 25mL of methanol
and charged into a 100mL high pressure microwave reaction vessel (MicroSYNTH
Model
HTR-300/6 S, Milestone Inc., Shelton, CT). To this was added 2,4-difluoro-1-
nitrobenzene
(1.43g, 9.52mmol). The vessel was sealed, placed into a microwave reactor
(MicroSYNTH),
warmed, with stirring, to 100 C, and maintained at that temperature for 1h.
The reaction
mixture was cooled to a temperature of about 25 C, concentrated onto silica to
provide
residues that were chromatographed with a silica gel column eluted with a
gradient of from
100%:0% Et0Ac:Me0H to 50%:50% Et0Ac:Me0H. The product fractions were combined
and concentrated to dryness under reduced pressure to provide 1.57g of the
compound of
formula DB as a bright orange solid.
The identity of the compound of formula DB, 1-cyclooctyl-N-(5-fluoro-2-
nitrophenyl)piperidin-4-amine, was confirmed using Ili NMR and LC/MS.
Compound DB: 11-I NMR: SH (400 MHz, CDC13): 8.21 (2H, m), 6.48 (111, m), 6.32
(1H, m), 4.41 (1H, m), 2.80 (2H, m), 2.63 (1H, m), 2.40 (2H, m), 2.06 (2H, m),
2.38-2.82
(16H, m); LC/MS (100%, tr = 2.456 min), m/z = 350.2 [M + H] (Cale: 349.4).
The compound of formula DB was added to 100mL of methanol and lg of Raney
nickel (Alfa Aesar, Ward Hill, MA) was added. In a sealed vessel, the mixture
was stirred
under an atmosphere of hydrogen (5atm) for 18h. The Raney nickel was filtered
off and the
mixture concentrated to dryness to provide the compound of formula DC
NI-(1-cyclooctylpiperidin-4-y1)-5-fluorobenzene-1,2-diamine, which LC/MS
showed to be
>99% pure material.
Thereafter, in a manner similar to Example 2, Heterocyclic-Substituted
Piperidine
Compound 16 was prepared from the compound of formula DC.
The identity of Heterocyclic-Substituted Piperidine Compound 16,
1-(1-cyclooctylpiperidin-4-y1)-8-fluoro-1H-benzo [b][1,4]diazepinc-2,4(3H,5H)-
dione, was
confirmed using 'H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 16: 1H NMR: oH (400 MHz, CD30D)
7.35 (1h, d, J=1511z), 7.23 (111, m), 7.15 (1H, m), 4.30(111, m), 3.45 (4H,
m), 3.30 (1H, d,
J=15Hz), 3.20 (211, t, J=10Hz), 3.10(111, d, J = 15Hz), 2.80 (2H, m), 2.10
(2H, m), 1.95 (2H,
m), 1.90-1.50 (12H, m); LC/MS, m/z = 388.2 [M + H].
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H 0 H 0
* N
HO
C1)
0
KOH
H3C
32 33
Heterocyclic-Substituted Piperidine Compound 32 was prepared from the compound
of
formula DA as described above except that 3-fluoro-4-nitropheny1-4-
methylbenzenesulfonate
(111E) was used in place of 2,4-difluoro-1-nitrobenzene.
The identity of Heterocyclic-Substituted Piperidine Compound 32,
1-(1-cyclooctylpiperidin-4-y1)-8-tosy1-1H-benzo[b][1 ,4]cliazepine-2,4(3H ,5H)-
dione , was
confirmed using Ili NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 32: IFINMR: öll (400 MHz, Me0D):
7.08 (1H, m), 7.01 (2H, m), 4.43 (1H, m), 3.91 (3H, s), 3.45 (4H, m), 3.05-
3.29 (3H, m), 2.71
(2H, m), 2.18 (1H, m), 2.00 (3H, m), 1.51-1.89 (12H, m); LC/MS (100%, tr =
5.139min), nilz =
400.4 [M + H] (Calc: 399.5).
Heterocyclic-Substituted Piperidine Compound 33 was prepared as follows.
Heterocyclic-Substituted Piperidine Compound 32 (280mg, 0.7mmol) was added to
dry
ethanol (10mL). To this, potassium hydroxide (1.4g, 25mmol) in 10mL of water
was added.
The reaction mixture was warmed to reflux for 18h. Thereafter, the mixture was
adsorbed onto
silica gel to provide residues that were chromatographed with a silica gel
column eluted with a
gradient of from 100%:0% Et0Ac:Me0H to 0%:100% Et0Ac:Me0H (COMB1FLASH). The
product fractions were combined and concentrated to dryness under reduced
pressure to
provide Heterocyclic-Substituted Piperidine Compound 33.
The identity of Heterocyclic-Substituted Piperidine Compound 33,
1-(1-cyclooetylpiperidin-4-y1)-8-hydroxy-1H-benzo[b][1,41diazepine-2,4(3H,5H)-
dione, was
confirmed using 1H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 33: Ili NMR: oil (400 MHz, Me0D):
7.19 (1H, m), 6.89 (1H, m), 6.79 (1H, m), 4.25 (1H, m), 3.48 (1H, m), 3.27
(1H, m), 3.05 (31-1,
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m), 2.60 (2H, m), 2.11 (1H, m), 1.90 (5H, m), 1.41-1.81 (11H, m); LC/MS (100%,
tr =
4.809min), m/z = 386.2 [M + I-1]4 (Cale: 385.5).
The compound of formula DF, 3-fluoro-4-nitropheny1-4-methylbenzenesulfonate,
was
prepared as follows.
NO2
NO2 SO2Ci 0
K2CO3 0=s =0
OH CH3
DD DE CH3
DE
3-Fluoro-4-nitrophenol (DD, 5g, 31.83mmol, Sigma-Aldrich) was added to 100mL
dry
acetone. To this, 4-methylbenzene-1-sulfonyl chloride (pl, 7.28g, 38.19mmol,
Sigma-
Aldrich) and potassium carbonate (11.0g, 79.57mmol) were added. In a sealed
vessel, the
reaction mixture was warmed to reflux for 2h. The reaction mixture was cooled
to a
temperature of about 25 C and concentrated to dryness under reduced pressure.
The residue
was partitioned between ethyl acetate (200mL) and water (200mL). The organic
portion was
separated, dried (MgSO4), filtered, and concentrated to dryness under reduced
pressure to
provide the compound of formula DF.
5.7 Example 7
In a manner similar to Example 6, the following Heterocyclic-Substituted
Piperidine
Compound was prepared from the compound of formula DA except that 4-methyl-2-
fluoro-1-
nitrobenzene was used in place of 2,4-difluoro-1-nitrobenzene:
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0
HNA
= N 0
H3C
34
The identity of Heterocyclic-Substituted Piperidine Compound 34,
1-(1-cyclooctylpiperidin-4-y1)-8-methy1-1H-benzo[b] [1,4]diazepine-2,4(3H,511)-
dione, was
confirmed using 1H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 34: 1H NMR: 6ll (400 MHz, Me0D):
7.23 (1H, m), 7.09 (1H, m), 7.01 (1H, m), 4.19 (1H, m), 4.38 (411, m), 3.12
(2H, m), 2.98 (111,
m), 2.68 (2H, m), 2.33 (3H, s), 1.97 (4H, m), 1.72 (4H, m), 1.32-1.65 (10H,
m); LC/MS
(97.4%, tr. = 5.258 min), fez = 384.3 [M + (Calc: 383.5).
In a manner similar to Examples 3 and 6, the following Heterocyclic-
Substituted
Piperidine Compounds were prepared from the compound of formula DA:
N x0
N 0
17
The identity of Heterocyclic-Substituted Piperidine Compound 17,
1-(1-cyclooctylpiperidin-4-y1)-7-fluoroquinoxaline-2,3(1H,4H)-dione, was
confirmed using 1H
NMR and LC/MS.
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Heterocyclic-Substituted Piperidine Compound 17: 1H NMR: SH (400 MHz, Me0D):
7.61 (111, d), 7.22 (1H, t), 6.98 (1H, m), 4.74 (1H, m), 3.53 (3H, m), 3.38
(2H, m), 3.19 (2H,
m), 2.09 (411, m), 1.90 (4H, m), 1.80-1.49 (811, m); LC/MS (97.3%, tr = 7.689
mm), fez =-
374.2 [M + Hr (Calc.: 373.5).
N 0
:(
N 0
18
Heterocyclic-Substituted Piperidine Compound 18 was prepared from the compound
of
formula DA except that 2,6-difluoro-1-nitrobenzene was used in Example 6 in
place of
2,4-difluoro-1-nitrobenzene.
The identity of Heterocyclic-Substituted Piperidine Compound 18,
1-(1-cyclooctylpiperidin-4-y1)-5-fluoroquinoxalinc-2,3(1H,4H)-dionc, was
confirmed using 111
NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 18: OH (400 MHz, Me0D): 7.57
(111,
m), 7.28 (1H, m), 7.11 (111, m), 4.86 (1H, m), 3.58 (3H, m), 3.41 (2H, m),
3.20 (2H, m), 2.10
(4H, m), 1.90 (4H, m), 1.80-1.49 (8H, m); LC/MS (100%, t, = 4.862 mm), m/z =
374.2 [M +
Kr (Calc.: 373.5).
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F3C NIe)
No
Heterocyclic-Substituted Piperidine Compound 35 was prepared from the compound
of
formula DA except that oxalic acid was used in Example 3 in place of oxalyl
dichloride and 2-
fluoro-5-(trifluoromethyl)-1-nitrobenzene was used in Example 6 in place of
2,4-difluoro-1-
5 nitrobenzene.
The identity of Heterocyclic-Substituted Piperidine Compound 35,
1-(1-cyclooctylpiperidin-4-y1)-6-(trifluoromethyl)quinoxaline-2,3(1H,4H)-
dione, was
confirmed using 1H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 35: bH (400 MHz, Me0D): 7.91 (1H,
10 m), 7.58 (1H, m), 7.51 (1H, s), 4.22 (3H, q), 3.55 (3H, m), 3.39 (2H,
m), 3.18 (2H, m), 2.09
(4H, m), 1.87 (4H, m), 1,48-1.81 (8H, m), 1.32 (4H, t); LC/MS (100%, tr =
5.705 min), in/z =
424.2 [M + (Calc: 423.5).
CH3
o NO
NO
36
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Heterocyclic-Substituted Piperidine Compound 36 was prepared from the compound
of
formula DA except that oxalic acid was used in Example 3 in place of oxalyl
dichloride and 1-
(4-fluoro-3-nitrophenyl)ethanone was used in Example 6 in place of 2,4-
difluoro-1-
nitrobenzene.
The identity of Heterocyclic-Substituted Piperidine Compound 36, 6-acety1-1-(1-
cyclooctylpiperidin-4-yl)quinoxaline-2,3(1H,4H)-dione, was confirmed using
1HNMR and
LC/MS.
Heterocyclic-Substituted Piperidine Compound 36: 61-1(400 MHz, Me0D): 7.91
(1H,
m), 7.82 (2H, m), 4.22 (1H, q), 3.44 (2H, m), 3.17 (4H, m), 2.64 (3H, s), 2.02
(4H, m), 1.50-
1.98 (14H, m), 1.32 (1H, t); LC/MS (97.1%, tr = 4.841 min), tn/z = 398.3 [M +
1-1]+ (Cale:
397.5).
* NO
0
F
37
Heterocyclic-Substituted Piperidine Compound 37 was prepared from the compound
of
formula DA except that oxalic acid was used in Example 3 in place of oxalyl
dichloride and
2,3-difluoro- 1 -nitrobenzene was used in Example 6 in place of 2,4-difluoro-
1-nitrobenzene.
The identity of Heterocyclic-Substituted Piperidine Compound 37,
1-(1-cyclooctylpiperidin-4-y1)-8-fluoroquinoxaline-2,3(1H,4H)-dione, was
confirmed using 1H
NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 37: 611(400 MHz, Me0D): 7.23 (1H,
m), 7.08 (2H, m), 4.66 (111, m), 4.22 (2H, q), 3.57 (2H, m), 3.54 (1H, m),
3.28 (2H, m), 3.19
(2H, m), 2.20 (2H, m), 2.02 (2H, m), 1.89 (4H, m), 1.45-1.79 (8H, m), 1.32
(3H, t); LC/MS
(100%, tr = 5.109 min), nz/z = 374.2 [M + (Calc: 373.5).
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H3C.,
SO2 100NO
NO
=%.
38
Heterocyclic-Substituted Piperidine Compound 38 was prepared from the compound
of
formula DA except that oxalic acid was used in Example 3 in place of oxalyl
dichloride and 2-
fluoro-5-(methylsulfony1)-1-nitrobenzene was used in Example 6 in place of 2,4-
difluoro-1-
nitrobenzene.
The identity of Heterocyclic-Substituted Piperidine Compound 38,
1-(1-cyclooctylpiperidin-4-y1)-6-(methylsulfonyl)quinoxaline-2,3(1H,4H)-dione,
was
confirmed using Ili NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 38: 611(400 MHz, DMSO-d6): 7.92
(1H, m), 7.81 (2H, m), 4.22 (1H, q), 3.67 (2H, m), 3.51 (1H, m), 3.40 (2H, m),
3.18 (5H, m),
2.11 (4H, m), 1.91 (4H, m), 1.51-1.79 (8H, m), 1.32 (2H, t); LC/MS (97.0%, tr
= 4.730 min),
nz/z = 434.2 [M + Hr (Calc: 433.6).
CI
N 0
NO
410
=%.,
39
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Heterocyclic-Substituted Piperidine Compound 39 was prepared from the compound
of
formula DA except that oxalic acid was used in Example 3 in place of oxaly1
dichloride and 6-
chloro-2-fluoro- 1-nitrobenzene was used in Example 6 in place of 2,4-difluoro-
1-nitrobenzene.
The identity of Heterocyclic-Substituted Piperidine Compound 39, 5-chloro-1-(1-
cyclooctylpiperidin-4-yl)quinoxaline-2,3(1H,4H)-dione, was confirmed using 1H
NMR and
LC/MS.
Heterocyclic-Substituted Piperidine Compound 39: 8.11 (400 MHz, Me0D): 7.70
(1H,
m), 7.39 (1H, m), 7.30 (1H, m), 4.22 (4H, q), 3.78 (2H, m), 3.56 (3H, m), 3.21
(2H, m), 2.10
(4H, m), 1.90 (4H, m), 1.48-1.79 (8H, m), 1.34 (6H, t); LC/MS (100%, tr =
5.258 min), rn/z =
390.1 [M + HI (Cale: 389.9).
CI NO
N 0
Heterocyclic-Substituted Piperidine Compound 40 was prepared from the compound
of
formula DA except that oxalic acid was used in Example 3 in place of oxalyl
dichloride and 5-
chloro-2-fluoro-l-nitrobenzene was used in Example 6 in place of 2,4-difluoro-
1-nitrobenzene.
15 The identity of Heterocyclic-Substituted Piperidinc Compound 40, 6-
chloro-1-(1-
cyclooctylpiperidin-4-yl)quinoxaline-2,3(1H,4H)-dione, was confirmed using '14
NMR and
LC/MS.
Heterocyclic-Substituted Piperidine Compound 40: OH (400 MHz, Me0D): 7.68 OIL
m), 7.29 (2H, m), 4.78 (1H, m), 4.22 (2H, q), 3.58 (3H, m), 3.40 (2H, m), 3.18
(2H, m), 2.09
20 (4H, m), 1.90 (4H, m), 1.47-1.79 (8H, m), 1.34 (3H, t); LC/MS (97.1%, t
= 5.356 min), nilz =
390.1 [M + 11] (Calc: 389.9).
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NO
N,-===0
H3C
41
Heterocyclic-Substituted Piperidinc Compound 41 was prepared from the compound
of
formula DA except that oxalic acid was used in Example 3 in place of oxalyl
dichloride and 4-
methyl-2-fluoro-1-nitrobenzene was used in Example 6 in place of 2,4-difluoro-
1-
nitrobenzene.
The identity of Heterocyclic-Substituted Piperidine Compound 41,
1-(1-cyclooctylpiperidin-4-y1)-7-methylquinoxaline-2,3(1H,4H)-dione, was
confirmed using
1HNMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 41: 6H (400 MHz, Me0D): 7.59 (1H,
s), 7.14 (2H, m), 4.88 (1H, m), 3.59 (4H, m), 3.47 (2H, m), 3.23 (2H, m), 2.49
(3H, s), 2.09
(4H, m), 1.92 (4H, m), 1.47-1.82 (8H, m); LC/MS (100%, t = 5.347 min), nilz =
370.4 [M +
H]' (Cale: 369.5).
OCH3
NO
NO
0 40
42
Heterocyclic-Substituted Piperidine Compound 42 was prepared from the compound
of
formula DA except that oxalic acid was used in Example 3 in place of oxalyl
dichloride and
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methyl 4-fluoro-3-nitrobenzoate was used in Example 6 in place of 2,4-difluoro-
1-
nitrobenzene.
The identity of Heterocyclic-Substituted Piperidine Compound 42, methyl 1-(1-
cyclooctylpiperidin-4-y1)-2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-
carboxylate, was
Heterocyclic-Substituted Piperidinc Compound 42: öff (400 MHz, McOD): 7.91
(2H,
m), 7.82 (1H, m), 4.78 (1H, m), 4.22 (1H, q), 3.95 (3H, s), 3.50 (3H, m), 3.18
(2H, m), 2.09
(4H, m), 1.90 (4H, m), 1.48-1.81 (8H, m), 1.34 (1H, t); LC/MS (97.0%, tr =
5.085 min), ni/z =
414.3 [M + Hr (Calc: 413.5).
5.8 Example 8
In a manner similar to Examples 2 and 6, the following Heterocyclic-
Substituted
Piperidine Compounds were prepared from the compound of formula DA:
H 0
opi N
a 0
Heterocyclic-Substituted Piperidine Compound 20 was prepared from the compound
of
The identity of Heterocyclic-Substituted Piperidine Compound 20,
1-(1-cyclooctylpiperidin-4-y1)-6-fluoro-1H-benzo [b][1,4]diazepine-2,4(3H,5H)-
dione, was
confirmed using IHNMR and LC/MS.
20 Heterocyclic-Substituted Piperidine Compound 20: 1H NMR: 61-1 (400 MHz,
(CD3)2S0): 9.55 (1H, bs), 7.30 (1H, m), 7.25 (2H, m), 4.30 (1H, m), 3.50 (1H,
d, J=20Hz),
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3.10 (2H, m), 2.90 (1H, d, J=20Hz), 2.67 (111, m), 2.54 (2H, m), 1.95 (4H, m),
1.80-1.40 (14H,
m); LC/MS, m/z = 388.4 [M + .
H 0
F N
a 0
21
Heterocyclic-Substituted Piperidine Compound 21 was prepared from the compound
of
formula DA except that 2,5-difluoro-1-nitrobenzene was used in Example 6 in
place of
2,4-difluoro-1-nitrobenzene.
The identity of Heterocyclic-Substituted Piperidine Compound 21,
1-(1-cyclooctylpiperidin-4-y1)-7-fluoro-1H-benzo[b][1,4]diazepine-2,4(3H,5H)-
dione, was
confirmed using 1HNMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 21: NMR: 5H (400 MHz,
(CD)2S0): 9.65 (1H, bs), 7.55(1H, m), 7.10 (1H, m), 7.00 (1H, m), 4.27 (1H,
m), 3.45 (1H, d,
J=20Hz), 3.10 (2H, m), 2.90 (1H, d, J=20Hz), 2.55 (1H, m), 2.38 (2H, m), 2.0-
1.80 (4H, m),
1.75-1.35 (14H, m); LC/MS, in/z = 520.3 [M + Hr.
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5.9 Example 9
0
H r,
NaH rAN H2
Ok
N-4 i
0
0
H2
22
Heterocyclic-Substituted Piperidine Compound 5, where the 3-position nitrogen
atom
was optionally protected by a protecting group as described above, was added
to dry DMF and
5 to this mixture was added sodium hydride. The mixture was warmed under an
argon
atmosphere then allowed to cool whereupon 2-bromoacetamide in DMF was added in
one
portion. The resulting mixture was stirred until the desired product was
obtained; thereafter, if
an optional protecting group was used, it was removed. The solvent was removed
under
reduced pressure to provide residues that were chromatographed with a silica
gel column
eluted with a gradient of from 100%:0% Et0Ac:Me0H to 0%:100% Et0Ac:Me0H. The
product fractions were combined and concentrated to dryness under reduced
pressure to
provide Heterocyclic-Substituted Piperidine Compound 22 as a solid.
The identity of Heterocyclic-Substituted Piperidine Compound 22,
2-(5-(1-cyclooctylpiperidin-4-y1)-2,4-dioxo-2,3,4,5-tetrahydro-1H-
benzo[b][1,4]diazepin-1-
yl)acetamide, was confirmed using 11-1NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 22: 1H NMR: 811(400 MHz, Me0D):
7.58 (1H, m), 7.50 (1H, m), 7.41 (2H, m), 4.85 (1H, m), 4.49 (1H, m), 4.29
(1H, m), 3.61-3.40
(4H, m), 3.31-3.10 (3H, m), 2.71 (211, m), 2.41 (11-1, m), 2.20 (1H, m), 2.01
(211, m), 1.83 (411,
m), 1.71-1.42 (8H, in); LC/MS (96.1%, tr = 4.741 min), nilz = 427.4 [M +1-1]+
(Calc: 426.6).
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5.10 Example 10
In a manner similar to Example 9, the following Heterocyclic-Substituted
Piperidine
Compounds were prepared from the Heterocyclic-Substituted Piperidine Compounds
previously synthesized.
0
riLOC2H5
N
N 0
23
Heterocyclic-Substituted Piperidinc Compound 23 was prepared by reacting
Heterocyclic-Substituted Piperidine Compound 6 with ethyl bromoacetate.
The identity of Heterocyclic-Substituted Piperidine Compound 23,
1-(1-cyclooctylpiperidin-4-y1)-7-fluoro-1H-benzo[b][1,4]diazepine-2,4(3H,51/)-
dione, was
confirmed using '14 NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 23: IFINMR: 8H (400 MHz, CDCI3):
7.65 (11-1, m), 7.20 (2H, m), 6.95 (111, d, .1=12Hz), 4.92 (211, s), 4.80
(111, m), 4.24 (211, q,
J---10Hz), 2.96 (2H, m), 2.85-2.60 (3H, m), 2.50 (2H, t, J=12Hz), 1.85-1.40
(16H, m); LC/MS,
nz/z = 441.0 [M + Fl]+.
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rat
co
43
Heterocyclic-Substituted Piperidine Compound 43 was prepared by reacting
Heterocyclic-Substituted Piperidine Compound 6 with ethyl iodide (Sigma-
Aldrich).
The identity of Heterocyclic-Substituted Piperidine Compound 43,
1-(1-cyclooctylpiperidin-4-y1)-4-cthylquinoxaline-2,3(1H,410-dione, was
confirmed using 1H
NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 43: NMR:
oH (400 MHz, CDC13):
7.78-7.81 (1H, m), 7.51-7.53 (1H, m), 7.31-7.36 (2H, m), 4.74 (1H, m), 4.29
(2H, q, J=7.1Hz),
3.15 (2H, m), 2.88-3.10 (3H, m), 2.66-2.70 (2H, m), 1.84-1.92 (6H, m), 1.52-
1.70 (10H, m),
1.36 (3H, t, J=7.1Hz); LC/MS, in/z = 384.3 [M + H]'.
vCN
I 0
N
N 1/40
44
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Heterocyclic-Substituted Piperidine Compound 44 was prepared by reacting
Heterocyclic-Substituted Piperidine Compound 6 with bromoacetonitrile (Sigma-
Aldrich).
The identity of Heterocyclic-Substituted Piperidine Compound 44,
2-(4-(1-cyclooctylpiperidin-4-y1)-2,3-dioxo-3,4-dihydroquinoxalin-1(211)-
ypacetonitrile, was
confirmed using 1H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 44: NMR:
öll (400 MHz, CDC13):
7.71-7.73 (1H, m), 7.41-7.43 (1H, m), 7.28-7.32 (2H, m), 5.21 (2H, s), 4.60
(1H, m), 2.96-3.05
(2H, m), 2.79-2.85 (3H, m), 2.53-2.76 (2H, m), 1.71-1.81 (6H, m), 1.43-1.59
(10H, m);
LC/MS, nt/z = 395.2 [M +
0
rj1'.-N1-12
N
NA
111111
040
24
Heterocyclic-Substituted Piperidine Compound 24 was prepared by reacting
Heterocyclic-Substituted Piperidine Compound 12 with bromo acetamide.
The identity of Heterocyclic-Substituted Piperidine Compound 24,
2-(4-(1-(1,2-dihydroacenaphthylen-1-yl)piperidin-4-y1)-2,3-dioxo-3,4-
dihydroquinoxalin-
1(2H)-yl)acetamide, was confirmed using 1H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 24: iff NMR: oil (400 MHz, DMSO-
d6): 8.18-7.05 (12H, m), 5.63 (1H, m), 4.79 (2H, s), 3.98 (1H, m), 3.78 (1H,
m), 3.56 (1H, s),
3.31 (4H, m), 3.05 (2H, m), 1.91 (2H, m); LC/MS (100%, tr = 4.936 min), nilz =
455.3 [M +
Hr (Cale 454.5).
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5.11 Example 11
riO\ OH
0
0
,
N 0
H 14111 NX
\ 0
Nall
____________________________ =
0
a.,
aN2
6
To a suspension of sodium hydride (0.56g, 60% in oil, 14.07mmole) in 15mL of
DMF
was added a solution of Heterocyclic-Substituted Piperidine Compound 6 (4.0g,
11.25mmole)
5 in 10mL of DMF. The resulting solution was allowed to stir for 3 h at
about 25 C. A solution
of epibromohydrin (2.0g, 14.63mmole) in 5mL of DMF was added dropwisc, and the
resulting
mixture was heated with stirring for at 50 C. After cooling to about 25 C, the
reaction
mixture was poured into 250mL of water and extracted three times with 100mL of
ethyl
acetate each time. The combined organic layers were dried (MgSO4) and
concentrated under
10 reduced pressure to provide Heterocyclic-Substituted Piperidine Compound
25,
1-(1-cyclooetylpiperidin-4-y1)-4-(oxiran-2-ylmethyDquinoxaline-2,3(1H,4H)-
dione, as an
orange glass.
A solution of Heterocyclic-Substituted Piperidine Compound 25 (0.58g,
1.41mmole)
and pyrrolidine (0.2g, 2.8mmole) in 15mL of DMF was heated at 50 C for 20h.
The reaction
15 mixture was cooled to a temperature of about 25 C and poured into 200mL
of water. The
aqueous mixture was extracted three times with 100mL of ethyl acetate each
time, and the
combined organic layers were dried (MgSO4) and concentrated under reduced
pressure to
provide a viscous orange oil. The oil was chromatographed with a silica gel
column eluted
with 10:10:80 Et0H:TEA:Et0Ac to provide a yellow solid which was
recrystallized from ethyl
20 acetate to provide 255mg of Heterocyclic-Substituted Piperidine Compound
26 as an off-white
colored solid.
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The identity of Heterocyclic-Substituted Piperidine Compound 26,
1-(1-cyclooctylpiperidin-4-y1)-4-(2-hydroxy-3-(pyrrolidin-1-
yl)propyl)quinoxaline-
2,3(1H,4H)-dione, was confirmed using 'H. NMR.
Heterocyclic-Substituted Piperidine Compound 26: 11-1 NMR: SH (400 MHz, DMS0-
d6): d 7.7 (m, 2H); 7.2 (m, 2H); 4.9 (m, 2H); 4.4 (bs, 1H); 4.25 (m, 1H); 4.1
(bs, 1H); 2.9-2.3
(bm, 13H); 1.8-1.3 (bm, 20H).
5.12 Example 12
In a manner similar to Example 11, the following Heterocyclic-Substituted
Piperidine
Compound was prepared from Heterocyclic-Substituted Piperidine Compound 25
except that
morpholine was used in place of pyrrolidine:
OH
N 0
N
27
The identity of Heterocyclic-Substituted Piperidine Compound 27,
1-(1-cyclooctylpiperidin-4-y1)-4-(2-hydroxy-3-morpholinopropyl)quinoxaline-
2,3(1H,4H)-
dione, was confirmed using 'H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 27: 11-1 NMR: 811(400 MHz,
(CD3)2S0): 10.75 (1H, bs), 7.95 (1H, bs), 7.68 (1H, dd), 7.27 (3H, m), 6.05
(1H, bs), 5.00
(1H, bs), 4.50 (1H, m), 4.17 (2H, m), 3.85 (2H, t), 3.80 (2H, m), 3.60-3.00
(15H, m), 2.10 (2H,
m), 1.90 (2H, m), 1.80-1.40 (12H, m); LC/MS, tn/z = 499.2 [M + .
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5.13 Example 13
0
0 NH,
0 40 ..........<IH
Nil 5
C2H ,...._ ....,..".õ,
..... ..,,....L....... N
____________________________________________ Po- e.....e".õ...
a b
BB EA
The compound of formula BB (1.00g, 3.32mmol) was added to 50mL of DCE. To this
was added 0-ethyl earbonisocyanatidate (0.0735mL; 6.64mmol, Sigma-Aldrich).
The mixture
was sealed in a 100mL high pressure microwave reaction vessel (MicroSYNTH
Model HTR-
300/6 S), placed into a microwave reactor (MicroSYNTH), warmed, with stirring,
to 150 C,
and maintained at that temperature for 30 min. The reaction mixture was cooled
to a
temperature of about 25 C, concentrated onto silica to provide residues that
were
chromatographed with a silica gel column eluted with a gradient of from
100%13%
Et0Ac:Me0H to 0%:100% Et0Ac:Me0H. The product fractions were combined and
concentrated to dryness under reduced pressure to provide 120mg of a compound
of formula
EA as a white solid (yield 10%).
The identity of the compound of formula EA, 1-(1-cyclooctylpiperidin-4-y1)-
1H-benzo[f][1,3,5]triazepine-2,4(3H,511)-dione, was confirmed using 1H NMR and
LC/MS.
Compound EA: 6'11(400 MHz, DMSO-d6): 10.92 (1H, s), 10.24 (1H, m), 7.83 (111,
s),
7.00 (3H, s), 4.62 (1H, m), 3.42 (3H, m), 3.29 (2H, m), 2.85 (2H, q),
1.99(211, m), 1.85(211,
m), 1.70 (41-1, m), 1.48 (811, m); LC/MS (100.0%, tr = 4.958 min), trilz =
371.2 [M + 111 (Cale:
370.5).
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5.14 Example 14
yoc
di NH2 (BOC)20N.B0C K2CO3
N.BOC
CI 11.--FP NO2 CI NO2 CI NO2
ER
0
(1)H2
di NH2 ith N.BOC Pt/C
ci IP. NH CI NH
N.
LNJ HCI NH2
IN ____________
NaBH(OAc)3, AcOH
FF
0
ci-J11 -cH3 1
0 oy,0,0H,
N 0
*1 NH AO I
NaOCH3 CI N 0
CI 1"/P NH
_
HCI
6
A mixture of 4-chloro-2-nitroaniline (FA, 1.726g, lOmmol, Sigma-Aldrich),
di-tert-butyl dicarbonatc ([BOC]20, 20mmol, Sigma-Aldrich) and 4-
dimethylaminopyridine
(DMAP, catalytic amount, Sigma-Aldrich) in THF (34mL) was stirred at 90 C for
lh. After
cooling to a temperature of about 25 C, the reaction mixture was concentrated
under reduced
pressure. The residue was chromatographed with a silica gel column eluted with
a gradient of
from 1:9 Et0Ac:n-hexanc to 1:4 Et0Ac:n-hexanc to provide the compound of
formula FB as a
colorless solid (yield >99%).
The identity of the compound of formula FB was confirmed using IHNMR.
Compound FB: NMR: 611(400 MHz, CDC13): 8.06 (1H, d, J=4Hz), 7.60
(1H, dd,
J=8Hz, J=4Hz), 7.27 (1H, d, J=4Hz), 1.41 (1811, s).
To a mixture of the compound of formula FB (3.70g, 9.9mmol) and methanol
(40mL)
was added K2CO3 (29.7mmol) and the reaction mixture was stirred for 3h at a
temperature of
about 25 C. After quenching with water (20mL), the reaction mixture was
neutralized with 1N
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HC1, adjusted to a pH within the range of from about 7 to about 8, extracted
with Et0Ac,
washed with brine, dried (MgSO4), and concentrated under reduced pressure. The
residue was
chromatographed with a silica gel column eluted with a gradient of from 1:19
Et0Ac:n-hexane
to 3:17 Et0Ac:n-hexane to provide the compound of formula FC as a yellow solid
(yield
90%).
The identity of the compound of formula FC, tert-butyl 4-chloro-
2-nitrophenylcarbamate, was confirmed using 'I-1 NMR.
Compound Q: 1H NMR: 6ii (400 MHz, CDC13): 9.59 (1H, s), 8.57 (1H, d, J=8Hz),
8.18 (1H, d, J=4Hz), 7.55 (1H, dd, J=8Hz, J=4Hz), 1.54 (9H, s).
A mixture of the compound of formula FC (1.00g, 3.67mmol), 2% platinum on
carbon
(200mg), and methanol (20mL) was stirred at a temperature of about 25 C for 2h
in a hydrogen
atmosphere. After filtration through CELITE and washing of the filter pad with
Et0Ac, the
filtrate was concentrated under reduced pressure and chromatographcd with an
amino-silica gel
column (Yamazen Corp. W091-01) eluted with a gradient of from 1:4 Et0Ac:n-
hexane to 1:1
Et0Ac:n-hexane to provide the compound of formula FD as a colorless solid
(yield 94%).
The identity of the compound of formula FD, tert-butyl 2-amino-
4-chlorophenylcarbamate, was confirmed using 1H NMR and LC/MS.
Compound FD: 'H NMR: 6ll (400 MHz, CDC13): 7.18 (1H, d, J=8Hz), 6.86 (1H, d,
J=4Hz), 6.80 (1H, dd, J=8Hz, J=4Hz), 6.25 (1H, s), 1.50 (9H, s); LC/MS, nilz =
243.0 [M +
Hr (Calc: 242.7).
A mixture of the compound of formula FD (840rng, 3.46mmol), the compound of
formula BA (5.54mmol), sodium triacetoxyborohydride (10.4mmol), acetic acid
(3.46mmol),
and chloroform (30mL) was stirred for 16h at a temperature of about 25 C.
After quenching
with saturated NaHCO3 solution, the mixture was extracted with chloroform,
dried (MgSO4),
and concentrated under reduced pressure. The residue was chromatographed with
an amino-
silica gel column (Yamazen Corp. W091-01) eluted with a gradient of from 3:17
Et0Ac:n-
hexane to 3:7 Et0Ac:n-hexane to provide the compound of formula FE as a
colorless solid
(yield 56%).
The identity of the compound of formula FE, tert-butyl 4-chloro-
2-(1-cyclooctylpiperidin-4-ylamino)phenylcarbamate, was confirmed using III
NMR.
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Compound FE: 'H NMR: SH (400 MHz, CDC13): 7.15 (1H, d, J=8Hz), 6.66 (1H, s),
6.65 (1H, s ), 5.98 (1H, m), 3.84 (1H, m), 3.23 (1H, m), 2.84-2.70 (3H, m),
2.42 (2H, m), 2.04
(2H, m), 1.92-1.39 (24H, m).
To a suspension of the compound of formula FE (844mg, 1.93mmol) in 1,4-dioxanc
(8mL) was added 4N HO in 1,4-dioxane (19.3mmol) and the reaction mixture was
stirred for
2h at a temperature of about 25 C. Thereafter, the reaction mixture was heated
to 50 C and
stirred for 30min. After concentration under reduced pressure, the mixture was
neutralized
with 28% aqueous ammonia to adjust the pH within the range from about 13 to
about 14.
After extraction with chloroform, the organic layer was dried (MgSO4) and
concentrated under
reduced pressure to provide the compound of formula FF as a brown solid (yield
>99%).
The identity of the compound of formula FF, 5-chloro-N1-(1-cyclooctylpiperidin-
4-
yObenzene-1,2-diamine, was confirmed using 114 NMR.
Compound FF: 'H NMR: o (400 MHz, CDC13): 6.63-6.58 (3H, m), 5.98 (1H, m),
3.37 (1H, m), 3.22 (2H, m), 2.85-2.83 (2H, m), 2.44 (1H, d, J=12Hz), 2.41 (2H,
t, J=12Hz),
2.08 (2H, d, J-12Hz), 1.83-1.45 (17H, m).
To a mixture of the compound of formula FF (168mg, 0.5mmol) and methylene
chloride (3mL) at a temperature of 0 C was added dropwisc over a 10 minute
period a mixture
of methyl 2-chloro-2-oxoacetate (0.55mmol, Sigma-Aldrich) and methylene
chloride (1.5mL).
The resulting reaction mixture was stirred at 0 C for 30 min. After quenching
with saturated
NaHCO3 solution, the mixture was extracted with chloroform, dried (MgSO4), and
concentrated under reduced pressure to provide an oil. The oil was
chromatographed with a
silica gel column eluted with a gradient of from 97%:3% CHC13:Me0H to 90%:10%
CHC13:Me0H to provide 18 mg of the compound of formula FG as a yellow
amorphous solid
(yield 86%).
The identity of the compound of formula FG, methyl 2-(4-chloro-
2-(1-cyclooctylpiperidin-4-ylamino)phenylamino)-2-oxoacetate, was confirmed
using NMR
and LC/MS.
Compound FG: iff NMR: 8ii (300 MHz, CDC13): 8.80 (IH, s), 7.43 (111, d,
J=8.7Hz
), 6.79 (1H, d, J=8.7Hz), 6.69 (1H, d, 3-2.4Hz), 3.98 (3H, s), 3.40-2.83 (7H,
m), 2.84-1.45
(17H, m); LC/MS, nilz = 421.8 [M fir (Cale: 422.0).
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To a mixture of the compound of formula FG (259mg, 0.614mmol) and ethanol
(6mL)
was added sodium methoxide (133mg, 2.46mmol, Sigma-Aldrich) at a temperature
of about
25 C. The reaction mixture was heated to 70 C then stirred at that temperature
for 3h. After
concentration under reduced pressure, 1N aqueous HC1 was added to adjust the
pH within the
range of from about 2 to about 3; thereafter a white precipitate formed. The
precipitate was
filtered, washed with water, washed with methanol, and dried under reduced
pressure at 50 C
to provide 171mg of the hydrochloride of Heterocyclic-Substituted Piperidine
Compound 45 as
a colorless solid (yield 65%).
The identity of Heterocyclic-Substituted Piperidine Compound 45, 7-chloro-
1-(1-cyclooctylpiperidin-4-yl)quinoxaline-2,3(1H,4H)-dione, was confirmed
using 1H NMR
and LC/MS.
Heterocyclic-Substituted Piperidine Compound 45: Iff NMR: 8H (300 MHz, Me0D):
7.78 (1H, d, J=1.8Hz), 7.25 (1H, dd, J=2Hz, J=8.7Hz), 7.18 (1H, d, J=8.7Hz),
4.77 (1H, m),
3.60-3.37 (6H, m), 3.32-3.10 (3H, m), 2.09-1.48 (15H, m); LC/MS (97%, tr =
2.09 min), m/z =
390.0 [M + (Calc: 389.9).
5.15 Example 15
Pd2(DBA)3
NO
110 BDCHP
I
LHMSD N 0 1
Br NO + 0 NH --0-=
N N 0
HCI
46
Heterocyclic-Substituted Piperidine Compound 46 was prepared in a manner
similar to
Heterocyclic-Substituted Piperidine Compound 45 in Example 14 except that 4-
bromo-2-
nitroaniline (Sigma-Aldrich) was used in place of 4-chloro-2-nitroaniline.
The identity of Heterocyclic-Substituted Piperidine Compound 46, 7-bromo-
1-(1-cyclooctylpiperidin-4-yl)quinoxaline-2,3(1H,4H)-d ione, was confirmed
using 1H NMR
and LC/MS.
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Heterocyclic-Substituted Piperidine Compound 46: 1H NMR: 611 (300 MHz, Me0D):
7.88 (1H, d, J-1.8Hz)), 7.38 (1H, dd, J=1.8Hz, J-8.7Hz), 7.13 (1H, d,
J=8.7Hz), 4.81 (1H, m),
3.60-3.34(611, m), 3.25-3.10 (3H, m), 1.48-2.12 (15H, m); LC/MS (97%, tr =
2.10 min), nz/z =
435.9 [M + (Cale: 434.4).
To a mixture of the hydrochlorice of Heterocyclic-Substituted Piperidine
Compound 46
(120mg, 0.25mmol, leq.), morpholine (0.61mmol, 2.4eq., Wako Pure Chemical
Industries,
Ltd., Osaka, Japan), tris(dibenzylideneacetone) dipalladium (Pd2(DBA)3,
0.013mmol, 0.05eq.,
Sigma-Aldrich), (2-biphenyl)-dicyclohexylphosphine (BDCHP, 0.013mmol, 0.05eq.,
Sigma-
Aldrich), and DMF (3mL) in a tube at a temperature of about 25 C was added a
lmol/L THF
solution of lithium hexamethyldisilazide (LHMDS, 1.15mmol, 4.6eq., Sigma-
Aldrich) and the
tube was sealed. Thereafter, under microwave irradiation, the reaction mixture
was stirred for
30 min at 150 C. After cooling to a temperature of about 25 C, to the reaction
mixture was
added to 2N HCI (0.5mL) and the mixture was stirred for 5min. After
concentration under
reduced pressure, the resulting black oil was chromatographed with an amino-
silica gel column
(Yamazen Corp. W091-01) eluted with a gradient of from 90%:10% Et0Ae:Me0H to
70%:30% Et0Ac:Me0H to provide a yellow solid. The solid was recrystalized with
4:1
MeOH:Et0Ac to provide Heterocyclic-Substituted Piperidine Compound 47 as a
pale yellow
solid (yield 38%).
The identity of Heterocyclic-Substituted Piperidine Compound 47,
1-(1-cyclooctylpiperidin-4-y1)-7-morpholinoquinoxaline-2,3(1H,4H)-dione, was
confirmed
using 1H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 47: 1H NMR: 6H (300 MHz, CD30D):
7.12-7.09 (2H, m), 6.88 (111, dd, J=2.4Hz, J=8.7Hz), 4.88 (111, m), 3.86(411,
t, J=4.5Hz), 3.17
(4H, t, J=4.5Hz), 3.02-2.99 (2H, m), 2.84-2.74 (4H, m), 2.58-2.50 (2H, m),
1.89-1.54 (15H,
m); LC/MS, in/z = 441.0 [M + F1]+ (Cale: 440.6).
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5.16 Example 16
BOC BOC CH3
NH NHnej
0 0
101
Br NH CI k-) ur13 Br .11 N'40
_______________________________________ =
NCI
H o CH3
401 401
Br HCI NaOCH3 Br
cl) 0
48 a a
The compound of formula GA, tert-butyl 4-bromo-241-cyclooctylpiperidin-
4-ylamino)phenylcarbamate, was prepared in a manner similar to the compound of
formula FE
in Example 14 except that 4-bromo-2-nitroaniline was used in place of 4-chloro-
2-nitroaniline.
To a mixture of the compound of formula GA (300mg, 0.624mmo1), pyridine
(1.25mmol), and methylene chloride (8mL) at a temperature of 0 C was added
dropwise over a
minute period a mixture of ethyl 3-chloro-3-oxopropanoate (0.66mmol, Sigma-
Aldrich) in
methylene chloride (2mL). The resulting reaction mixture was stirred at 0 C
for lh. After
10 quenching with water and extraction with chloroform, the organic layer
was dried (MgSO4)
and concentrated under reduced pressure. The resulting oil was chromatographed
with an
amino-silica gel column (Yamazen Corp. W091-01) eluted with a gradient of from
3:97
Et0Ac:n-hexane to 1:4 Et0Ac:n-hexane to provide 166mg of the compound of
formula GB as
a colorless amorphous solid (yield 44%).
The identity of the compound of formula GB, ethyl 3-((5-bromo-
2-(tert-butoxycarbonylamino)phenyl)(1-cyclooctylpiperidin-4-yl)amino)-3-
oxopropanoate,
was confirmed using IliNMR.
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Compound GB: 111 NMR: oH (400 MHz, DMS0): 8.84 (1H, s), 7.69 (1H, dd,
J=8.4Hz), 7.58 (1H, d, J=8.5Hz), 7.26 (1H, d, J=4Hz), 4.21 (1H, m), 3.99 (2H,
q, J=8Hz), 2.97
(2H, m), 2.64 (2H, m), 2.44 (1H, s), 2.15 (2H, m), 1.77-1.32 (14H, m), 1.14
(3H, t, J=8Hz).
To a mixture of the compound of formula GB (160mg, 0.27mmol) and 1,4-dioxanc
(3mL) at a temperature of about 25 C was added 4N HC1 in 1,4-dioxane
(5.4mmol). The
resulting reaction mixture was cooled to 0 C and stirred for 2h. Thereafter,
the reaction
mixture was warmed to a temperature of about 25 C and stirred for 1h. After
quenching with
water, the mixture was neutralized with 28% aqueous ammonia to adjust the pH
within the
range of from about 13 to about 14. Thereafter, After chloroform was used in
an extraction,
the organic layer was dried (MgSO4), and concentrated under reduced pressure.
The resulting
oil was chromatographed with a silica gel column eluted with a gradient of
from 97%:3%
CHC13:Me0H to 90%:10% CHC13:Me0H to provide 30mg of the compound of formula GC
as
a colorless amorphous solid (yield 23%).
The identity of the compound of formula GC, ethyl 3-((2-amino-
5-bromophenyl)(1-cyclooctylpiperidin-4-yl)amino)-3-oxopropanoate, was
confirmed using 1H
NMR and LC/MS.
Compound GC: 1H NMR: oll (400 MHz, CDC13): 7.25 (1H, d, J=8Hz), 7.07 (1H, d,
J=2Hz), 6.65 (1H, d, J=8Hz), 4.11 (2H, q, J=8Hz ), 3.99 (1H, s), 3.13 (2H, s),
2.95-2.23 (7H,
m), 2.02-1.38 (14H, m), 1.22 (3H, t, J=8Hz); LC/MS, m/z = 496.0 [M + (Calc:
494.5).
To a mixture of the compound of formula GC (65mg, 0.13mmol) in ethanol (4mL)
at a
temperature of about 25 C was added sodium methoxide (28mg, 0.53mmol). The
reaction
mixture was heated to 70 C then stirred at that temperature for lh. After
concentration under
reduced pressure, the oil obtained was chromatographed by preparative thin
layer
chromatography (TLC, eluted with 10:1:0.1 CHC13:MeOH:aqueous ammonia) to
provide a
colorless amorphous solid. To the solid was added 4N HCI in 1,4-dioxane. The
resulting
mixture was concentrated under reduced pressure. The residue was dried under
reduced
pressure at 50 C to provide 50mg of the hydrochloride of Heterocyclic-
Substituted Piperidine
Compound 48 as a colorless solid (yield 79%).
The identity of Heterocyclic-Substituted Piperidine Compound 48, 8-bromo-
1-(1-cyclooctylpiperidin-4-y1)-1H-benzo [b][1,4]diazepine-2,4(3H,5H)-dione,
was confirmed
using 1H NMR and LC/MS.
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Heterocyclic-Substituted Piperidine Compound 48: 1H NMR: 6H (300 MHz, Me0D):
7.67 (1H, d, J=2.4Hz), 7.50 (1H, dd, J-2.4Hz, J=8.4Hz), 7.14 (1H, d, J=8.4Hz),
4.22 (1H, m),
3.59-3.02 (8H, m), 2.65 (2H, m), 2.20-1.41 (15H, m); LC/MS (98%, tr = 2.05
min), tit/z =
449.9 [M + Hr (Calc: 448.4).
5.17 Example 17
NH2
*NH2
NH
NH2 H3CO2C.1 f CO2CH3 (ATCO2CH3 NH2
cy02CH3
.4P'CO2CH3--00- N --30" N
ilA 118 Mn HE
Cyclooctylaminc -4t, 155g, 1218.5mmol, Sigma-Aldrich) was dissolved in
acetonitrile (500mL). Methyl acrylate (HB, 470g, 5460mmo1, Sigma-Aldrich) was
added,
followed by the addition of bismuth triflate (15g, Sigma-Aldrich), and the
mixture heated
under reflux for 18h. The mixture was concentrated under reduced pressure and
was
chromatographed by flash silica eluted with hexanes, followed by eluting with
10:1
hexanes:Et0Ac to provide 360g of a compound of formula HC as a colorless oil
(yield >99%).
The identity of the compound of formula HC, dimethyl
3,3'-(cyclooctylazanediyOdipropanoate, was confirmed using 1H NMR.
Compound HC: 1H NMR: 6 (400 MHz, CDC13): 3.68 (3H, s), 2.70 (2H, t, J=10Hz),
2.65 (1H, m), 2.40 (2H, t, J= 10Hz), 1.75-1.35 (14H, m).
The compound of formula HC (100g, 334mmo1) was dissolved in dry toluene (2L)
and
cooled to 0 C under a nitrogen atmosphere. Sodium tert-butoxide (41.7g,
434.2mmol, Sigma-
Aldrich) was added and the mixture was stirred for 3h at 0 C. When LC/MS
showed about 10-
20% of the compound of formula HC remained, a further portion of sodium tert-
butoxide
(10g) was added and stirring was continued for an additional lh. The mixture
was poured into
water (2L) and the organic phase was separated. The aqueous phase was
extracted with ethyl
acetate (1L). The organic phases were combined, dried (MgSO4), and
concentrated under
reduced pressure to provide a yellow oil which was chromatographcd by flash
silica eluted
with 5:1 hexanes:Et0Ac to provide 60g of the compound of formula HD as a
yellow oil (yield
68%) which slowly solidified upon standing.
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The identity of the compound of formula HD, methyl 1-cycloocty1-4-
oxopiperidine-3-
carboxylate, was confirmed using TLC.
Compound HD: TLC (Si02) 5:1 Hexanes:Et0Ac: Rf = 0.25 with UV detection,
Dragendorffs reagent.
The compound of formula HD (20g, 75.4mmol) and o-phenylenediamine (16.29g,
150.8mmol) were dissolved in toluene (200mL). Acetic acid (1mL) was added and
the mixture
was heated under reflux with azeotropic removal of water for lh. The mixture
was
concentrated under reduced pressure and the residue was chromatographed by
flash silica
eluted with 100:2 Et0Ac:AcOH, followed by eluting with 100:2:5 Et0Ac:AcOH:Me0H
to
provide an orange gum. The gum was dissolved in ethyl acetate (400mL) and
treated with
potassium carbonate/water until neutralized, i.e., had a pH greater than 7.
The organic phase
was separated, dried (MgSO4) and concentrated under reduced pressure to
provide and orange
gum which crystallized upon standing. Trituration with 1:10 hexanes:diethyl
ether (200mL)
provided 17g of the compound of formula HE as a buff-colored solid (yield
63%).
The identity of the compound of formula HE, methyl 4-(2-aminophenylamino)-
1-cycloocty1-1,2,5,6-tetrahydropyridine-3-carboxylate, was confirmed using 1H
NMR.
Compound HE: 11-1 NMR: 6 (400 MHz, CDC13): 9.8 (1H, s), 7.05 (1H, t, J=10Hz),
6.95 (1H, d, J=10Hz), 6.75-6.65 (2H, m), 3.85 (2H, bs), 3.70 (3H, s), 3.32
(2H, s), 2.72 (1H,
m), 2.50 (2H, t, J=-10Hz), 2.25 (2H, t, .1-10Hz), 1.80-1.40 (14H, m).
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5.18 Example 18
toNH2 N0
NH 00 * NTO
CI)1'4(CI
Cky.0O2CH3
ff 49
NaOy
CH3
N 0
N0
C1,CO2- Na+
LAI,CO2CH3
51
The compound of formula HE (11g, 30.77mmol), prepared in Example 17, was
dissolved in dichloromethane (2L) and added dropwise to a cold, -78 C, mixture
of oxalyl
dichloride (2.86nnL, 33.85mmol, Sigma-Aldrich) in dichloromethane (6L) over
3h. Thereafter
with stirring, over 18h the resulting mixture was allowed to warm to a
temperature of about
25 C. The mixture was concentrated under reduced pressure and the residue was
chromatographed by flash silica eluted with 400:10:1 Et0Ac:MeOH:ammonia to
provide a
yellow solid. This solid was triturated with diethyl ether (30mL) to provide
4.0g of
Heterocyclic-Substituted Piperidine Compound 49 as a light yellow solid (yield
32%).
The identity of Heterocyclic-Substituted Piperidine Compound 49, methyl
1-cycloocty1-4-(2,3-dioxo-3,4-dihydroquinoxalin-1(214)-y1)-1,2,5,6-
tetrahydropyridine-
3-carboxylate, was confirmed using 1HNMR.
Heterocyclic-Substituted Piperidine Compound 49: 1H NMR: 6 (400 MHz, CDC13):
10.7 (1H, bs), 7.28 (1H, m), 7.15 (2H, m), 7.05 (1H, m), 3.55 (2H, m), 3.50
(3H, m), 2.90 (3H,
m), 2.50 (2H, m), 1.90-1.40 (14H, m).
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Heterocyclic-Substituted Piperidine Compound 49 (100mg, 0.24mmol) was
dissolved
in methanol (1mL). Crushed sodium hydroxide (50mg, 1.21mmol) was dissolved in
water
(0.3mL), added to the methanol, and the resulting mixture stirred for lh.
After this time a solid
had precipitated. The mixture was filtered and the filter cake was washed with
methanol
(3mL) and concentrated under reduced pressure to provide 105mg of Heterocyclic-
Substituted
Piperidine Compound 50 as a buff-colored solid (yield >99%).
The identity of Heterocyclic-Substituted Piperidine Compound 50, methyl
1-cycloocty1-4-(2,3-dioxo-3,4-dihydroquinoxalin-1(2H)-y1)-1,2,5,6-
tctrahydropyridine-
3-carboxylic acid sodium salt, was confirmed using III NMR.
Heterocyclic-Substituted Piperidine Compound 50: '11NMR: 6 (400 MHz,
(CD3)2S0): 7.00 (1H, m), 6.90 (1H, m), 6.85 (1H, m), 6.77 (1H, m), 3.40 (1H,
m), 2.65 (4H,
m), 2.20 (1H, m), 2.00 (1H, m), 1.80-1.40 (14H, m).
The Heterocyclic-Substituted Piperidine Compound 49 (100mg, 0.24mmol) was
dissolved in dry DMF (2mL) under a nitrogen atmosphere. Sodium hydride (95%,
Sigma-
Aldrich) was added and the mixture was heated to 90 C for lh then cooled to 50
C with
stirring. lodomethane (18pL, 0.292mmo1, Sigma-Aldrich) was added and the
mixture stirred
for 3h. LC/MS showed greater than 75% conversion after this time. The mixture
was
partitioned between diethyl ether (100mL) and 1M potassium carbonate (100mL)
and the
organic phase separated, dried (MgSO4), and concentrated under reduced
pressure to provide a
residue. The residue was chromatographed by flash silica eluted with 1:1
Et0Ac:hexanes,
followed by eluting with 100:100:10:1 Et0Ac:hexanes:MeOH:ammonia to provide
35mg of
Heterocyclic-Substituted Piperidine Compound 51 as a yellow solid.
The identity of Heterocyclic-Substituted Piperidine Compound 51, methyl
1-cycloocty1-4-(4-methy1-2,3-dioxo-3,4-dihydroquinoxalin-1(2H)-y1)-
1,2,5,6-tetrahydropyridine-3-carboxylate, was confirmed using '1-1NMR and TLC.
Heterocyclic-Substituted Piperidine Compound 51: 'H NMR: 6 (400 MHz, CDC13):
7.25 (1H, m), 7.18 (2H, m), 7.12 (1H, m), 3.70 (3H, S), 3.56 (2H, m), 3.50
(3H, s), 2.85 (1H,
m), 2.50 (2H, m), 1.80 (4H, m), 1.70-1.45 (10H, m); TLC (Si02) 100:100:10:1
Et0Ac:hexanes:MeOH:ammonia: Rf = 0.22 with UV detection, Dragendorffs reagent.
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5.19 Example 19
0
0
0 Br
H7'H
HC\7 H
F7'1 411 H3CN ' Br + NH2
CH 3
1101
IA IB HA ID
Iso NH2
NH2
Am NH2
'WI NH
N 0 Hi
Hi iLo H3C
loy)(00
H N 'H ai NH2
H H 1101NO LCH3 1911' NH
+
H>07'H
52
53 lE
The compound of formula IB, (bromomethyl)benzene (6.5g, 38mmol, Sigma-
Aldrich),
was added to a mixture of the compound of formula IA, (1R,55)-8-methyl-
8-azabicyclo[3.2.1]octan-3-one (5g, 36mmol, Sigma-Aldrich), in acetone (100mL)
over 30 min
at a temperature of about 25 C. The resulting mixture was stirred at a
temperature of about
25 C for lh then at 38 C for 2h. Thereafter, the mixture was cooled to a
temperature of about
25 C, filtered, and washed twice with hexanes (10mL for each wash) to provide
lOg of the
compound of formula IC as white solid (yield 85%).
The compound of formula IC, (1R,5S)-8-benzy1-8-methy1-3-oxo-
8-azoniabicyclo[3.2.1]octane bromide (5g, 16.1mmol), was mixed with 40mL
ethanol and
20mL of water. This mixture was added to a mixture at 70 C of the compound of
formula HA
(2.0g, 16mmol), and K2CO3 (0.2g, 1.4mmol) in ethanol (150mL) over 30min. After
3h at
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70 C, the reaction mixture was cooled to a temperature of about 25 C, and
concentrated. The
residue was treated with water (50mL), and extracted three times with
chloroform (100mL for
each extraction). The combined organic layers were washed with brine (50mL),
and
concentrated to provide 3.5g of the compound of formula ID (yield 92%).
Sodium triacetoxyborohydride (50mmol) was added to a mixture of the compound
of
formula ID, (1R,55)-8-cycloocty1-8-azabicyclo[3.2.1]octan-3-one (3g,
12.8mmol), and
o-phenylenediamine (3g, 27.8mmol) in 100mL of methylene chloride at a
temperature of about
25 C. Thereafter, 3mL of acetic acid was added. The resulting mixture was
stirred at a
temperature of about 25 C for about 16h. Thereafter, methanol (2mL) and water
(25mL) were
added and the mixture was neutralized with 28% aqueous ammonia to adjust the
pH to about 8.
The organic layer was separated, washed with brine (10mL), concentrated, and
chromatographed with a silica gel column eluted with 10:1:1 Et0Ac:MeOH:TEA to
provide
2.8g of a mixture of the compounds of formula IE and IF as brown oil (yield
68%).
The identity of the compound of formula 1E, NI -01R,3r,5S)-8-cyclooctyl-
8-azabicyclo[3.2.1]octan-3-yl)benzene-1,2-diamine, was confirmed using TLC.
Compound 1E: TLC (Si02) 100:7:1 Et0Ac:MeOH:NH4OH: Rf = 0.6 with UV
detection, Dragendorffs reagent.
The identity of the compound of formula IF, NI-01R,3s,55)-8-cyclooctyl-
8-azabicyclo[3.2.1]octan-3-yl)benzene-1,2-diamine, was confirmed using TLC.
Compound IF: TLC (Si02) 100:7:1 Et0Ac:MeOH:NH4OH: Rf = 0.4 with UV
detection, Dragendorffs reagent.
A mixture of the above brown oil (0.3g, containing the compounds of formula IE
and
IF) in 20mL of diethyl oxalate (Sigma-Aldrich) was heated at 140 C for 16h.
After cooling to
a temperature of about 25 C, the reaction mixture was diluted with Et0Ac,
washed with 30mL
of 2N aqueous NaOH and brine (20mL), concentrated, and chromatographed with a
silica gel
column eluted with 5:5:0.5:0.5 Et0Ac:hexane:MeOH:TEA to provide 60mg and 20mg
of the
two Heterocyclic-Substituted Piperidine Compounds 52 and 53, respectively,
each as a white
solid (yield 18% and 6%, respectively).
The identity of Heterocyclic-Substituted Piperidine Compound 52,
1-((lR,3,-,5S)-8-cycloocty1-8-azabicyclo[3.2.1]octan-3-yl)quinoxaline-2,3( I
H,4H)-dione, was
confirmed using 1HNMR, LC/MS and TLC.
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Heterocyclic-Substituted Piperidine Compound 52: IFI NMR: 6H (400 MHz,
(CD30D+CDC13)): 7.51 (1H, d, J=7.9Hz), 7.11-7.21 (m, 3H), 5.16-5.24 (m,
1H),4.08 (br,
2H), 2.9 (br, 1H), 2.56-2.64 (m, 2H), 2.06-2.26 (m, 6H), 1.72-1.96 (m, 6H),
1.32-1.62 (m, 811);
LC/MS (100%, tr = 4.988 min), nz/z = 382.4 [M + H]4 (Calc: 381.5); TLC (Si02)
100:7:1
Et0Ac:MeOH:NH4OH: Rf = 0.5 with UV detection, Dragendorffs reagent.
The identity of Heterocyclic-Substituted Piperidine Compound 53,
1-01R,3s,5S)-8-cycloocty1-8-azabicyclo[3.2.1]octan-3-yl)quinoxaline-2,3(1H,4H)-
dione, was
confirmed using 1HNMR, LC/MS and TLC.
Heterocyclic-Substituted Piperidine Compound 53: 1HNMR: 611(400 MHz,
(CD30D+CDC13)): 7.62 (br, 1H), 7.21-7.24 (m, 3H), 4.95 (br, 1H), 3.75 (br,
2H), 3.36 (br,
111), 2.91-2.98 (m, 2H), 2.06-2.16 (m, 2H), 1.42-1.96 (m, 18H); LC/MS (100%,
t, = 4.718
min), ,n/z= 382.2 [M+ H] (Calc: 381.5); TLC (Si02) 100:7:1 Et0Ac:MeOH:NH4OH:
Rf =
0.45 with UV detection, Dragendorffs reagent.
5.20 Example 20
In a manner similar to Example 19, the following Heterocyclic-Substituted
Piperidine
Compounds were prepared from compounds previously synthesized.
a NH2
sH NA n
1.1j NH
Hi
CI yThiCI
g
H)(Y/H
00 0
NH2 HHN-41
11F NH sa,
*NO
H-AyH .54
HNY'H
IE
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Heterocyclic-Substituted Piperidine Compounds 54 and 55 were prepared from the
compounds of formula lE and 1F, respectively, except that malonyl dichloride
was used in
Example 19 in place of diethyl oxalate.
The identity of Heterocyclic-Substituted Piperidine Compound 54,
1-((1R,3,-,5S)-8-cyclooctyl-8-azabicyclo[3.2.1]octan-3-y1)-1H-
benzo[b][1,4]diazepine-
2,4(3H,5H)-dione, was confirmed using 'H NMR, LC/MS and TLC.
Heterocyclic-Substituted Piperidinc Compound 54: 11-1NMR: SH (400 MHz,
(CD30D+CDC13)): 7.38-7.42 (m, 1H), 7.28-7.32 (m, 2H), 7.16-7.25 (m, 1H), 4.18-
4.24 (m,
1H), 3.56-3.68 (m, 2H), 3.36 (1H, d, J=12.4Hz), 3.07 (d, 1H, J=12.3Hz), 2.52-
2.61 (m, 1H),
2.2-2.4 (m, 3H), 1.96-2.02 (m, 3H), 1.44-1.82 (m, 16H); LC/MS (100%, tr =
5.054 min), nilz =
396.3 [M + H]- (Calc: 395.5); TLC (Si02) 100:7:1 Et0Ac:MeOH:NRIOH: Rf = 0.7
with UV
detection, Dragendorffs reagent.
The identity of Heterocyclic-Substituted Piperidine Compound 55,
1-((1R,3s,5S)-8-cycloocty1-8-azabicyclo[3.2.1]octan-3-y1)-1H-benzo
[b][1,4]diazepine-
2,4(3H,5H)-dione, was confirmed using 11-1NMR, LC/MS and TLC.
Heterocyclic-Substituted Piperidine Compound 55: NMR: oil (400 MHz,
(CD30D+CDC13)): 7.38-7.42 (m, 1H), 7.28-7.32 (m, 2H), 7.16-7.25 (m, 1H), 4.42-
4.46 (m,
1H), 3.56-3.68 (m, 2H), 3.36 (11-1, d, J=12.4Hz), 3.21-3.24 (m, 1H), 3.07 (d,
1H, J=I2.3Hz),
2.45-2.58 (m, 1H), 1.44-1.84 (m, 18H); LC/MS (98.6%, tr = 5.000 min), ni/z =
396.3 [M + Hf
(Calc: 395.5); TLC (Si02) 100:7:1 Et0Ac:MeOH:NH4OH: Rf = 0.5 with UV
detection,
Dragendorffs reagent.
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NH2
NH N
HI HI
H3C)
H NH2
Oyko
(,-.1,4
NH N 0
SIN
+
H H
Heterocyclic-Substituted Piperidinc Compounds 56 and 57 were prepared
according to
the procedure in Example 19 except that 9-methy1-9-azabicyclo[3.3.1]nonan-3-
one (Pseudo-
Pelletierine, obtained from Oakwook Products, Inc., West Columbia, SC) was
used in place of
the compound of formula IA to prepare the compounds of formula JA and JB which
were used
to prepare Heterocyclic-Substituted Piperidine Compounds 56 and 57,
respectively.
The identity of Heterocyclic-Substituted Piperidine Compound 56,
14(1R,3r,5S)-9-cyclooctyl-9-azabicyclo[3.3.1]nonan-3-yl)quinoxaline-2,3(1H,4H)-
dione, was
confirmed using 1H NMR, LC/MS and TLC.
Heterocyclic-Substituted Piperidine Compound 56: 1H NMR: 6H (400 MHz,
(CD30D+CDC13): 7.5-7.55 (m, 1H), 7.2-7.26 (m, 3H), 5.08 (br, 1H), 3.52-3.6 (m,
2H), 3.08-
3.16 (m, 1H), 2.64-2.76 (m, 2H), 2.44-2.52 (m, 1H), 2.08-2.16 (m, 2H), 1.48-
1.82 (m, 17H),
1.12-1.2 (m, 2H); LC/MS (97.9%, t, = 4.450 min), nt/z = 396.3 [M + (Cale:
395.5); TLC
(Si02) 10:2:1 Et0Ac:MeOH:NH4OH: Rf = 0.62 with UV detection, Dragendorffs
reagent.
The identity of Heterocyclic-Substituted Piperidine Compound 57,
141R,3s,5S)-9-cycloocty1-9-azabicyclo[3.3.1]nonan-3-y1)quinoxaline-2,3(1H,411)-
dione, was
confirmed using 1H NMR, LC/MS and TLC.
Heterocyclic-Substituted Piperidine Compound 57: 1H NMR: 6H (400 MHz,
(CD30D+CDC13): 7.72 (br, 1H), 7.21-7.26 (m, 3H), 5.8 (br, 1H), 4.53 (br, 2H),
3.49-3.54 (m,
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2H), 3.37-3.41 (m, 1H), 2.97-3.06 (m, 2H), 2.04-2.12 (m, MI), 1.52-1.86 (m,
19H), 1.12-1.2
(m, 2H); LC/MS (97%, tr = 4.936 min), tri/z = 396.3 [M + H]+ (Calc: 395.5);
TLC (Si02)
10:2:1 Et0Ac:MeOH:NH4OH: Rf = 0.3 with UV detection, Dragendorffs reagent.
FIN
001 NH2
0
HI HI 0
0 0 HN __
H N:12 ."H
CI CI NH
- 0
+
H
JB 5.2
Heterocyclic-Substituted Piperidine Compounds 58 and 59 were prepared
according to
the procedure in Example 19 except that 9-methyl-9-azabicyclo[3.3.1]nonan-3-
one was used in
place of the compound of formula IA to prepare the compounds of formula JA and
JB.
Thereafter, in a manner similar to Example 2, Heterocyclic-Substituted
Piperidine Compounds
58 and 59 were prepared from malonyl dichloride and the compounds of formula
JA and JB,
respectively.
The identity of Heterocyclic-Substituted Piperidine Compound 58,
14(1R,3,-,55)-9-cycloocty1-9-azabicyclo[3.3.1]nonan-3-y1)-1H-
benzo[b][1,4]diazepine-
2,4(3H,5H)-dione, was confirmed using 1H NMR, LC/MS and TLC.
Heterocyclic-Substituted Piperidine Compound 58: 114 NMR: ki (400 MHz,
(CD30D+CDC13)): 7.46-7.50 (m, 1H), 7.27-7.31 (m, 2H), 7.13-7.17 (m, 1H), 4.42-
4.48 (m,
111), 3.44-3.64 (m, 211), 3.3-3.33 (m, 1H), 3.16-3.21 (m, 111), 2.92-2.98 (m,
111), 2.12-2.22 (m,
411), 1.35-1.75 (m, 20H); LC/MS (100%, tr = 5.299 min), trz/z = 410.2 [M + H]i
(Calc: 409.6);
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TLC (Si02) 10:2:1 Et0Ac:MeOH:NH4OH: Rf = 0.71 with UV detection, Dragendorffs
reagent.
The identity of Heterocyclic-Substituted Piperidine Compound 59,
1-01R,3s,5S)-9-cyc1oocty1-9-azabicyc10 [3 .3.1]nonan-3-y1)-1H-benzo[b]
[1,4]diazepine-
2,4(3H,5H)-dione, was confirmed using LC/MS and TLC.
Heterocyclic-Substituted Piperidine Compound 59: LC/MS (184%, tr = 5.116 min),
410.2 [M + H]' (Calc: 409.6); TLC (Si02) 10:2:1 Et0Ac:MeOH:NH4OH: Rf = 0.18
with UV detection, Dragendorffs reagent.
5.21 Example 21
H
0 NH2 i NI 0
NH N 0
Fisk Fisk
H3C
Hs
0
0 N
0 N.2 (:).....õ. o)fA o N
(:)---0 3 00 NO40 0 LCH3 ,
H
k...
NH2 3
NH, C
_____,.. KB6H NH ' N 0
N Fl KDa.
I
CH3 N N
4-,
.,-=-=
0 0 0 0
1
KA
rs1 1.4
.... ,3 CH3
ISS KE
H 1 411 N..../.:õ.0 TMSI
H
N^0 4 NX0
Hihk
N 0
Br
H
N Htk
or Nr
Ilk : H
11111 N 0
Hi...(7
lild H op Nx
0
KE N 0
fa N H =
+
Ilk K2c03 + ..7.
N
H
11 Ea
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The compound of formula KA, methyl 3-oxo-8-azabicyclo[3.2.1]oct-6-ene-
8-carboxylate, was prepared by the procedure provided in N. Ctamer, S.
Laschat, A. Baro and
W. Frey, Synlett 2175-2177 (2003).
A mixture of the compound of formula KA (1.0g, 5.5mmol), o-phenylenediamine
(1.2g, llmmol), NaB(0Ac)3H (2.5g, 12.5mmol) and acetic acid (0.7g, 1 Immo!) in
40mL of
DCE was stirred under nitrogen at a temperature of about 25 C for 36h.
Methanol (1mL) was
added slowly such that the temperature of the reaction mixture did not exceed
25 C. The
reaction mixture was washed with water (20mL), extracted three times with DCM
(20mL for
each extraction), concentrated under reduced pressure, and chromatographed
with a silica gel
column eluted with 10:3 Et0Ac:Me0H to provide a mixture of the compounds of
formulas KB
and KC.
The mixture of the compounds of formulas KB and KC in 40mL of diethyl oxalate
was
heated at 150 C for 16h. After cooling to a temperature of about 25 C, the
solid was filtered
off and the mixture concentrated under reduced pressure. The residue was
chromatographed
with a silica gel column eluted with 10:3 Et0Ac:Me0H to provide a mixture of
the compounds
of formulas KD and ICE.
lodotrimethylsilane (TMS1, 0.2mL, Sigma-Aldrich) was added to a mixture of the
compounds of formulas KD and KE (110mg, 0.4mmol) in 10mL of dry DCM at a
temperature
of about 25 C. Thereafter, the reaction mixture was heated and shaken at 50 C
for 2h. After
cooling to a temperature of about 25 C, acetic acid (0.2mL) was added to the
reaction mixture
and it was concentrated under reduced pressure to provide a mixture of the
compounds of
formulas KF and KG as a brown solid.
The mixture of the compounds of formulas KF and KG was added to acctonitrile
(4mL). 3-Bromo-cyclooctene 100mg, 0.5mmol, prepared according to the
method in M.
Sellen et al., J. Org. Chem. 56: 835 (1991)), TEA (0.1mL), potassium iodide
(20mg), and
potassium carbonate (0.4g) were then added to the acctonitrile. The resulting
reaction mixture
was shaken at 60 C for 16h. After cooling to a temperature of about 25 C,
water (10mL) was
added to the reaction mixture and it was extracted three times with DCM (10mL
for each
extraction), concentrated under reduced pressure, and chromatographed with a
silica gel
column eluted with 10:1:0.1 Et0Ac:MeOH:TEA to provide 20mg and 14mg of the two
Heterocyclic-Substituted Piperidine Compounds 60 and 61, respectively, each as
a white solid
(yield 15% and 11%, respectively).
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The identity of Heterocyclic-Substituted Piperidine Compound 60, (Z)-1-(8-
(cyclooct-
2-eny1)-8-azabicyclo[3.2.1]oct-6-en-3-y1)quinoxaline-2,3(1H,4H)-dione, was
confirmed using
111 NMR, LC/MS and TLC.
Heterocyclic-Substituted Piperidine Compound 60: 11-1NMR: 511(400 MHz,
(CD30D+CDC13)): 7.83 (1H, d, J=8.3Hz), 7.21-7.28 (m, 3H), 6.32-6.41 (nn, 2H),
6.02-6.08
(m, 2H), 5.72-5.8 (m, 1H), 4.44-4.64 (m, 3H), 2.42-2.54 (m, 3H), 2.02-2.14 (m,
3H), 1.54-1.78
(m, 5H), 1.28-1.36 (m, 3H); LC/MS (100%, tr = 4.977 min), m/z = 378.1 [M + Hr
(Calc:
377.5); TLC (Si02) 10:2:1 Et0Ac:MeOH:NRIOH: Rf = 0.51 with UV detection,
Dragendorffs reagent.
The relative structure of Heterocyclic-Substituted Piperidine Compound 60,
trans-H1 to
bridge, was assigned based on 2D NMR spectrometry.
The identity of Heterocyclic-Substituted Piperidine Compound 0, (Z)-1-(8-
(cyclooct-
2-eny1)-8-azabicyclo[3.2.1]oct-6-en-3-yl)quinoxaline-2,3(1H,4H)-dione, was
confirmed using
1H NMR, LC/MS and TLC.
Heterocyclic-Substituted Piperidine Compound 61: 11-1 NMR: 6H (400 MHz,
(CD30D+CDCW): 7.52-7.56 (m, 1H), 7.18-7.25 (m, 3H), 6.28-6.34 (m, 2H), 5.84-
5.92 (m,
I H), 5.32-5.43 (m, 1H), 4.54-4.58 (m, 1H), 4.1-4.14 (m, 1H), 2.62-2.68 (m,
1H), 2.08-2.14 (m,
1H), 1.94-1.96 (m, 1H), 1.72-1.82 (m, 3H), 1.52-1.62 (m, 4H), 1.22-1.35 (m,
5H); LC/MS
(100%, tr = 4.777 min), nz/z = 378.1 [M + Hf (Calc: 377.5); TLC (Si02) 10:2:1
Et0Ac:MeOH:NH4OH: Rf = 0.23 with UV detection, Dragendorffs reagent.
The relative structure of Heterocyclic-Substituted Piperidine Compound 0, cis-
H1 to
bridge, was assigned based on 2D NMR spectrometry.
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5.22 Example 22
i-C113
(CH3 0
c
0c)c.; OC):) OF; Ari Q'
HNA
H31 H3c LiOH H3C 1) TEA H3C O
a 0
l'IP ,R.
+ I 1 -O. =
ti N N B !;1.* 11 OC goo aoc N2) BnOH
BOC
IA la Lc LQ LE
1 Pd/C, H2
02N An 02N gib
NH2
OP
HN 11.1 HN 411F H3Ca
H3ccl,) 1) HCI H3ca . k .2.,-.r.n 3 02N
+ N
N N F
2) TFAA 6oc
J.. 6oc
o cF3
LQ LE
LI LH
To a mixture of N,N-diisopropylamine (6.81mL, 48.6mmol) in THF (100mL) at a
temperature of 0 C was added dropwise a mixture of 1.6N n-butyl lithium (Sigma-
Aldrich) in
THF (30.4mL, 48.6mmol). The resulting mixture was stirred at 0 C for 15 min.
After cooling
to a temperature of -78 C, a mixture of the compound of formula LA (1-tert-
butyl 4-ethyl
piperidine-1,4-dicarboxylate, 10.0g, 38.9mmol, Sigma-Aldrich) in THF (50mL)
was added
dropwise over a 30min period. After being stirred at -78 C for 2h, a mixture
of methyl iodide
(4.84mL, 77.7mmol) in THF (30mL) was added dropwise at -78 C. The mixture was
allowed
to warm to a temperature of about 25 C for 16h. After quenching with saturated
aqueous
NH4C1, the mixture was partitioned between THF and saturated aqueous NH4C1.
The organic
layer was separated, dried (Na2SO4), filtered, and concentrated under reduced
pressure. The
product was chromatographed (COMBIFLASH) with a gradient of from 0%:100%
Et0Ac:hexanes to 50%:50% Et0Ac:hexanes to provide, after concentration under
reduced
pressure, 8.10g of the compound of formula LB as a pale yellow solid (yield
76.8%).
The identity of the compound of formula LB 1-tert-butyl 4-ethyl 4-
methylpiperidine-
1,4-dicarboxylate, was confirmed using 1H NMR.
Compound LB: I H NMR: $31-1 (400 MHz, CDC13): 4.16 (2H, q, J=7.1Hz), 3.76 (2H,
br), 2.95-3.01 (2H, m), 2.05-2.08 (2H, m), 1.45 (9H, s), 1.32-1.43 (2H, m),
1.26(311, t,
J=7.1Hz), 1.20 (3H, s).
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A mixture of the compound of formula LB (4.10g, 15.1mmol) and lithium
hydroxide
(2.17g, 90.6mmol) in methanol (30mL)/H20 (20mL) was stirred at a temperature
of about
25 C for 16h. After evaporation to dryness, the residue was partitioned
between DCM and
brine. The organic layer was separated, dried (MgSO4), filtered, and
concentrated under
reduced pressure to provide 3.38g of the compound of formula LC as a white
solid (yield
92.0%).
The identity of the compound of formula LC, 1-(tert-butoxycarbony1)-
4-methylpiperidine-4-carboxylic acid, was confirmed using Ili NMR and LC/MS.
Compound LC: Ill NMR: off (400 MHz, CDC13): 3.60-3.70 (2H, m), 3.03-3.09 (2H,
m)2.05-2.08 (2H, m), 1.45 (9H, s), 1.36-1.45 (2H, m), 1.27 (3H, m); LC/MS
(100%, tr = 2.500
min), m/z = 266.1 [M + Na] (Cale: 243).
To a mixture of the compound of formula LC (2.00g, 8.22mmol) and TEA (1.72mL,
12.3mmol) in toluene (20mL) at a temperature of about 25 C was added the
compound of
formula LD (diphenylphosphoryl azide ("DPPA"), 2.42mL, 11.2mmol, Sigma-
Aldrich). The
mixture was stirred at a temperature of about 25 C for 18h. After evaporation
to dryness, the
residue was partitioned between Et0Ac and 1N aqueous NaOH. The organic layer
was
separated, dried (Na2SO4), filtered, and concentrated to dryness under reduced
pressure. The
residue was chromatographed (COMBIFLASH) with a gradient of from 0%:100%
Et0Ac:hexanes to 50%:50% Et0Ac:hexanes to provide, after concentration under
reduced
pressure, 2.00g of the compound of formula LE as colorless oil (yield 70.1%).
The identity of the compound of formula LE, tert-butyl 4-
(benzyloxycarbonylamino)-
4-methylpiperidine-1-carboxylate, was confirmed using Ili NMR and LC/MS.
Compound LE: 'H NMR: 0H (400 MHz, CDC13): 7.30-7.39 (5H, m), 5.06 (2H, s),
4.61 (1H, brs), 3.66 (2H, m), 3.12-3.17 (211, m), 1.97 (2H, br), 1.50-1.60
(2H, m), 1.45 (9H, s),
1.38 (3H, s); LC/MS (100%, t, = 2.500 min), nilz = 355 [M + Nal+ (Cale: 328).
A mixture of the compound of formula LE (2.48g, 7.11mmol) and 10% palladium on
carbon (200mg, Sigma-Aldrich) in methanol (20mL) was stirred under a hydrogen
atmosphere
at a temperature of about 25 C for 16h. The Pd/C was filtered off and the
filtrate was
concentrated under reduced pressure to provide 1.37g of the compound of
formula LF as a
silverery-colored viscous oil (yield 90.2%).
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The identity of the compound of formula LF, tert-butyl 4-amino-4-
methylpiperidine-1-
carboxylate, was confirmed using 1H NMR.
Compound LF: 1H NMR: 611(400 MHz, CDC13): 3.47-3.49 (4H, m), 1.47-1.61 (4H,
m), 1.46 (9H, s), 1.31-1.42 (2H, m), 1.15 (3H, s).
A mixture of the compound of formula LF (1.37g, 6.41mmol), the compound of
formula LG (2-fluoro-1 -nitrobenzene, 2.71mL, 25.6mmol, Sigma-Aldrich) and
potassium
carbonate (4.43g, 32.1mmol) in DMSO (10mL) was stirred at a temperature of 80
C for 24h.
The mixture was partitioned between Et0Ac and water. The organic layer was
separated,
washed with brine, dried (Na2SO4), filtered, and concentrated to dryness under
reduced
pressure. The residue was chromatographed (COMBIFLASH) with a gradient of from
0%:100% Et0Ac:hexanes to 50%:50% Et0Ac:hexanes to provide, after concentration
under
reduced pressure, 2.03g of the compound of formula LH as pale yellow oil
(yield 94.4%).
The identity of the compound of formula LH, tert-butyl 4-methyl-
4-(2-nitrophenylamino)piperidine- 1-carboxylate, was confirmed using 'H NMR
and LC/MS.
Compound LH: 11-1 NMR: ofi (400 MHz, CDCI3): 8.41 (1H, br), 8.20 (1H, dd,
J=8.6Hz, 1.7Hz), 7.36-7.40 (1H, m), 7.03 (1H, dd, J=8.8Hz, 0.9Hz), 6.62-6.66
(1H, m), 3.77-
3.79 (2H, m), 3.16-3.18 (2H, m), 2.10-2.13 (2H, m), 1.67-1.74 (2H, m), 1.53
(3H, s), 1.46 (9H,
s); LC/MS (100%, tr = 3.410 min), nn/z= 358.1 [M + (Cale: 335).
To a mixture of the compound of formula LH (3.02g, 9.00mmol) in DCM (10mL) at
a
temperature of 0 C was added IN HC1 in diethyl ether (30mL, 30mmol). The
mixture was
allowed to warm to a temperature of about 25 C for 20h. The mixture was
concentrated under
reduced pressure to provide a pale yellow solid. To a mixture of the solid and
TEA (4.39mL,
31.5mmol) in DCM (25mL) at a temperature of 0 C was added trifluoroacetic
anhydride
(TFFA, 1.40mL, 9.90mmol, Sigma-Aldrich). After being stirred at 0 C for 45min,
0.70mL of
additional TFFA was added to the mixture. The mixture was further stirred at 0
C for 5min
after which it was partitioned between DCM and water. The organic layer was
separated,
washed with brine, dried (MgSO4), filtered, and concentrated under reduced
pressure to
provide 2.80g of the compound of formula LI as an orange solid (yield 93.9%).
The identity of the compound of formula LI, 2,2,2-trifluoro-1-(4-methyl-
4-(2-nitrophenylamino)piperidin-l-yl)ethanone, was confirmed using LC/MS.
Compound LI: LC/MS (100%, tr = 2.933 min), trilz = 354.1 [M + Na] (Calc: 331).
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02N la H3C) H
0,,,0 Alt, alb NO
HN eµPj H3C)
CIN IV Pd/C, H2 IV 1,1=0
H3C
0 0 Br
a
+ I H3Ca NO2 -IP- H3r) + ip
N 0 CI 01101
N N
OCF3
==.
0 CF3 0 cF3 AB
LI u LK LL
I1) Na0C2H5
2) TEA
H
N 0
4 I
N 0
H3Co
N
4111
401
52
A mixture of the compound of formula LI (1.50g, 4.53mrnol) in neat compound of
formula LI (ethyl 2-chloro-2-oxoacetate, 10.1mL, 90.6mmol, Sigma-Aldrich) was
stirred at a
temperature of 65 C for 3h. After cooling to a temperature of about 25 C, the
mixture was
partitioned between Et0Ac and water. The organic layer was separated, washed
with brine,
dried (Na2SO4), filtered, and concentrated to dryness under reduced pressure.
The residue was
chromatographed (COMBIFLASH) with a gradient of from 0%:100% Et0Ac:hexanes to
50%:50% Et0Ac:hexanes to provide, after concentration under reduced pressure,
2.80g of the
compound of formula LK as a yellow oil (yield 93.9%).
The identity of the compound of formula LK, ethyl 2-((4-methy1-
1-(2,2,2-trifluoroacetyl)piperidin-4-y1)(2-nitrophenyl)amino)-2-oxoacetate,
was confirmed
using Ili NMR and LC/MS.
Compound LK: Ili NMR: off (400 MHz, CDCI3): 8.04 (1H, ddd, J=7.8Hz, 3.2Hz,
1.8Hz), 7.61-7.70 (2H, m), 7.39-7.43 (1H, m), 4.39 (2H, q, J=7.1Hz), 3.87-3.96
(2H, m), 3.26-
3.35 (1H, m), 2.88-2.98 (1H, m), 2.49-2.53 (0.5H, m), 2.28-2.31 (0.5H, m),
1.95-2.19 (2H, m),
1.90-1.93 (1H, m), 1.82 (1.5H, s), 1.77 (1.5H, m), 1.39 (3H, t, J=7.1Hz);
LC/MS (100%, 4 ---
2.833 min), m/z = 454.1 [M + Na] (Calc: 431).
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A mixture of the compound of formula LK (1.48g, 3.43mmol) and 10% palladium on
carbon (150mg) in Et0H (10mL) was stirred under a hydrogen atmosphere at a
temperature of
about 25 C for 4h. The Pd/C was filtered off and the filtrate was concentrated
to dryness under
reduced pressure. The residue was chromatographed with a silica gel column
eluted with 0%-
50% Et0Ac:hexanes to provide, after concentration under reduced pressure,
723mg of the
compound of formula LL as a white solid (yield 52.5%).
The identity of the compound of formula LL, 1-(4-methy1-
1-(2,2,2-trifluoroacetyl)piperidin-4-yl)quinoxaline-2,3(1H,4H)-dione, was
confirmed using '1.1
NMR and LC/MS.
Compound LL: NMR: oil (400 MHz,
DMSO-d6): 11.54 (1H, br), 7.64 (1H, d,
J=8.1Hz), 7.52 (1H, dd, J=8.1Hz, 1.5Hz), 7.27-7.30 (1H, m), 7.16-7.20 (1H, m),
3.74-3.78
(1H, m), 3.56-3.59 (1H, m), 2.88-2.94 (1H, m), 2.71-2.81 (3H, m), 2.04-2.12
(2H, m), 1.80
(3H, s); LC/MS (100%, tr =2.250 min), in/z = 378.1 [M + Na] (Calc: 355).
To a mixture of the compound of formula LL (331mg, 0.93mmol) in Et0H (2mL)/H20
(0.5mL) at a temperature of about 25 C was added 21wt.% sodium ethoxide in
Et0H (0.38mL,
1.03mmol). The mixture was stirred at a temperature of about 25 C for 16h. The
mixture was
concentrated to dryness under reduced pressure. The residue was washed with
DCM to
provide a tan solid.
To a suspension of the solid in DMSO (3mL) at a temperature of about 25 C was
added
the compound of formula AB (260mg, 1.12mmol). After being stirred at a
temperature of
about 25 C for lh, TEA (0.16mL, 1.12mmol) was added. The mixture was stirred
an
additional 3h at a temperature of about 25 C. The mixture was partitioned
between Et0Ac and
water. The organic layer was separated, washed with brine, dried (Na2SO4),
filtered, and
concentrated to dryness under reduced pressure. The residue was
chromatographed with a
silica gel column eluted with a gradient of from 100%:0% MeOH:DCM to 20%:80%
MeOH:DCM. Further chromatography was conducted with preparative TLC (eluted
with a
gradient of from 0%:100% MeOH:DCM to 20%:80% MeOH:DCM) to provide 26.6mg of
Heterocyclic-Substituted Piperidine Compound 62 as a white solid (yield 6.9%).
The identity of Heterocyclic-Substituted Piperidine Compound 62,
1-(1-(1,2-dihydroacenaphthylen-1-y1)-4-methylpiperidin -4-yl)quinoxal ine-
2,3(1 H,4H)-dione,
was confirmed using NMR and LC/MS.
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Heterocyclic-Substituted Piperidine Compound 62: IHNMR: 6H (400 MHz, CD30D):
7.56 (11-1, d, J=8.2Hz), 7.45 (1H, d, .14.2Hz), 7.39 (1H, d, J=6.8Hz), 7.37
(1H, d, 3=6.8Hz),
7.27-7.30 (1H, m), 7.18 (1H, d, J=6.8Hz), 7.11 (1H, d, 3=6.8Hz), 6.82-7.03
(3H, m), 4.66-4.67
(1H, m), 3.31 (1H, dd, J=17.7Hz, 8.0Hz), 3.04-3.09 (1H, m), 2.83-2.92 (2H, m),
2.31-2.34
(2H, m), 2.11 (1H, m), 1.69-1.77 (2H, m), 1.67 (3H, s), 1.42 (1H, m); LC/MS
(100%, tr = 4.64
min), in/z = 412.2 [M HI (Calc: 411).
5.23 Example 23
0 2 N
01-13 0 0 ak, , H2
CH3 0 0 410
HN L0)LAN LO)LAN
H3Ca CLH030 0 H3r pdic
) NO2 H3Ca NH2
CI
0 CF3 o cF3 o cF3
LI
mQ
1) Na Br
2) TEA, 40*
An
0
HN
-A0
H3Ce.)
4111
00
fia
A mixture of the compound of formula LI (797mg, 2.41mmol) and the compound of
formula MA (ethyl 3-chloro-3-oxopropanoatc, 1.51mL, 12.0mmol), in DCE (15mL)
was
stirred at a temperature of 70 C for 55h. After cooling to a temperature of
about 25 C, the
mixture was partitioned between DCM and water. The organic layer was
separated, washed
with brine, dried (MgSO4), filtered, and concentrated to dryness under reduced
pressure. The
residue was chromatographed with a silica gel column eluted with a gradient of
from 0%:100%
Et0Ac:hexanes to 50%:50% Et0Ac:hexanes to provide, after concentration under
reduced
pressure, 659mg of the compound of formula MB as a pale yellow oil (yield
61.5%).
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The identity of the compound of formula MB, ethyl 3-04-methyl-
1-(2,2,2-trifluoroacetyppiperidin-4-y1)(2-nitrophenyl)amino)-3-oxopropanoate,
was confirmed
using NMR and LC/MS.
Compound MB: 'H NMR: oil (400 MHz, CDCI3): 7.85-7.89 (1H, m), 7.60-7.68 (2H,
m), 7.39-7.42 (1H, m), 4.31-438 (1H, m), 4.12 (2H, q, J=7.1Hz), 4.07-4.16 (1H,
m), 3.18-3.27
(2H, m), 3.02 (1H, dd, J=16.0Hz, 5.4Hz), 2.85-2.88 (1H, m), 2.24-2.37 (1H, m),
2.05 (3H, s),
1.64-1.95 (3H, m), 1.23 (3H, t, .1=7.1Hz); LC/MS (100%, tr = 2.787 min), in/z
= 468.1 [M +
(Calc: 445).
A mixture of the compound of formula MB (659mg, 1.59mmol) and 10% palladium on
carbon (60mg) in Et0H (5mL) was stirred under a hydrogen atmosphere at a
temperature of
about 25 C for 3h. The Pd/C was filtered off and the filtrate was concentrated
under reduced
pressure to provide 572mg of the compound of formula MC as a colorless oil
(yield 93.1%).
The identity of the compound of formula MC, ethyl 342-aminophenyl)(4-methyl-
1-(2,2,2-trifluoroacetyl)piperidin-4-yl)amino)-3-oxopropanoate, was confirmed
using LC/MS.
Compound MC: LC/MS (100%, t, =2.898 min), in/z = 438.1 [M + Nar (Cale: 415).
To a mixture of the compound of formula MC (106mg, 0.254mmo1) in Et0H (2mL) at
a temperature of about 25 C was added pieces of sodium (20.4mg, 0.889mmo1).
The mixture
was stirred at a temperature of about 25 C for lh, then stirred at a
temperature of 70 C for lh.
After cooling to a temperature of about 25 C, the mixture was concentrated
under reduced
pressure to provide an orange solid. A mixture of the solid, the compound of
formula AB
(88.8mg, 0.381mmol), and TEA (0.078mL, 0.559mmo1) in DCE (2mL) was stirred at
a
temperature of about 25 C for 16h. The mixture was partitioned between DCM and
water.
The organic layer was separated, washed with brine, dried (MgSO4), filtered,
and concentrated
to dryness under reduced pressure. The residue was chromatographed by
preparative TLC
(eluted with a gradient of from 0%:100% MeOH:DCM to 20%:80% MeOH:DCM) to
provide
14.5mg of Heterocyclic-Substituted Piperidine Compound 63 as an off white
solid (yield
13.4%).
The identity of Heterocyclic-Substituted Piperidine Compound 63,
1-(1-(1,2-dihydroacenaphthylen-l-y1)-4-methyl piperidin-4-y1)-1H-
benzo[b][1,4]diazepine-
2,4(3H,5H)-dione, was confirmed using 11-1 NMR and LC/MS.
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Heterocyclic-Substituted Piperidine Compound 63: 111 NMR: 511 (400 MHz,
CD30D):
7.65-7.69 (1H, m), 7.57-7.60 (1H, m), 7.37-7.52 (4H, m), 7.15-7.36 (4H, m),
4.74-4.80 (1H,
m), 3.39-3.49 (2H, m), 2.74-3.00 (2H, m), 2.43-2.47 (1H, m), 2.13-2.31 (1H,
m), 1.57-1.96
(4H, m), 1.75 1(1.5H, s), 1.747 (1.5H, s); LC/MS (100%, t, = 2.064 min), nz/z
= 426.1 [M +
HI (Calc: 425).
5.24 Example 24
0 0
HNACH3 0 0 Ari 1) Na HN Pd/C, H2 N 0
LON 2) K2CO3, H3CckjHCI H3Ca
KI,
H3ca NH2
Br
0.%"CF3
ffic 1111
To a mixture of the compound of formula MC (572mg, 1.38mmol) in Et0H (2mL) at
a
temperature of about 25 C was added pieces of sodium (111mg, 4.82mmol). The
mixture was
stirred at a temperature of 70 C for 3h. After cooling to a temperature of
about 25 C, the
mixture was concentrated under reduced pressure to provide a white solid.
A mixture of that solid, the compound of formula KH (252mg, 1.33mmol),
potassium
carbonate (368mg, 2.66mmol) and potassium iodide (23.8mg, 0.11mmol) in
acetonitrile (5mL)
was stirred at a temperature of 80 C for 3h. The mixture was partitioned
between Et0Ac and
water. The organic layer was separated, washed with brine, dried (Na2SO4),
filtered, and
concentrated to dryness under reduced pressure. The residue was
chromatographed with a
silica gel column eluted with a gradient of from 0%:100% MeOH:DCM to 20%:80%
McOH:DCM to provide, after concentration under reduced pressure, 136mg of
Heterocyclic-
Substituted Piperidine Compound 64 as a white solid (yield 32.0%).
The identity of Heterocyclic-Substituted Piperidine Compound 64, (Z)-1-(1-
(cyclooct-
2-eny1)-4-methylpiperidin-4-y1)-1H-benzo[b][1,4]diazepine-2,4(3H,5H)-dione,
was confirmed
using 1H NMR and LC/MS.
Heterocyclic-Substituted Piperidinc Compound 64: iliNMR: SH (400 MHz, CD30D):
7.49-7.51 (1H, m), 7.36-7.41 (1H, m), 7.24-7.30 (2H, m), 5.76-5.87 (1H, m),
5.30-5.39 (1H,
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m) 3.22-3.27 (1H, m), 2.81-2.99 (2H, brs), 2.68-2.69 (1H, m), 2.05-2.38 (5H,
m), 1.59-1.95
(8H, m), 1.78 (3H, s), 1.21-1.51 (4H, m); LC/MS (100%, t1= 1.952 min), m/z =
382.2 [M +
}-1]+ (Cale: 381).
Heterocyclic-Substituted Piperidine Compound 64 (76.7mg, 0.20=1 1), 10%
palladium on carbon (20mg) and concentrated HC1 (0.05mL) in methanol (2mL) was
stirred
under a hydrogen atmosphere at a temperature of about 25 C for 3h. The PcUC
was filtered off
and the filtrate was concentrated to dryness under reduced pressure. The
residue was
partitioned between Et0Ac and IN aqueous NaOH. The organic layer was washed
with brine,
dried (Na2SO4), filtered, and concentrated to dryness under reduced pressure.
The residue was
triturated with hexanes to provide 572mg of Heterocyclic-Substituted
Piperidine Compound 65
as a white solid (yield 93.1%).
The identity of Heterocyclic-Substituted Piperidine Compound 65, 1-(1 -
cycloocty1-4-
methylpiperidin-4-y1)-1H-benzo[b][1,4]cliazepine-2,4(3H,5H)-dione, was
confirmed using 11-1
NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 65: 1HNMR: 611(400 MHz, CDC13):
7.49 (1H, d, J=7.0Hz), 7.38 (1H, td, J=7.7Hz, 1.3Hz), 7.23-7.29 (2H, m), 2.79-
3.14 (2H, brs),
2.50 (2H, m), 2.31-2.36 (114, m), 2.19-2.22 (1H, m), 1.44-1.91 (19H, m), 1.77
(3H, s); LC/MS
(100%, tr =1.972 min), m/z = 384.2 [M + Naf (Calc: 383).
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5.25 Example 25
yOC
= N NH
N NH
0 a
yoc qoc
1) (Boc)20
N NH2 N NH H2 N NH EIA
NO2 2) K2CO3 NO2 Pd/C NH2
NA Kg 112
NNO
1N 0 HG!
OHO
H3C-0 CI
N 2HCI N NH2
Uctai
H 0
N 0 0 a
CI)LACI
a= 0
02HCI
A mixture of the compound of formula NA (3-nitropyridin-2-amine, 1.39g,
lOmmol),
(BOC)20 (20mmol), and DMAP (catalytic amount) in THF (28mL) was stirred at 90
C for lh.
After cooling to a temperature of about 25 C and quenching with water (10mL),
the mixture
was extracted three times with Et0Ac, dried (MgSO4), and concentrated under
reduced
pressure. At a temperature of about 25 C, the resulting yellow oil was mixed
with methanol
(33mL) then added to K2CO3 (30mmol). The reaction mixture was stirred at 60 C
for lh.
After cooling to a temperature of about 25 C, 2N HC1(10mL) was added and the
pH was
adjusted within the range of from about 7 to about 8. Thereafter, the mixture
was extracted
three times with Et0Ae, dried (MgSO4), and concentrated under reduced
pressure. The
resulting oil was chromatographed with a silica gel column eluted with a
gradient of from
10%:90% Et0Ac:n-hexane to 50%:50% Et0Ac:n-hexane to provide the compound of
formula
NB as a yellow solid (yield 91%).
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The identity of the compound of formula NB, tert-butyl 3-nitropyridin-2-
ylcarbamate,
was confirmed using 'H NMR.
Compound NB: 'H NMR: 6H (300 MHz, CDC13): 9.59 (1H, s), 8.72 (1H, dd,
J=4.5Hz, J=1.5Hz), 8.5 (1H, dd, J=8.4Hz, J=1.5Hz), 7.14 (1H, dd, J=8.4Hz,
J=4.8Hz), 1.56
(9H, s).
A mixture of the compound of formula NB (2.11g, 9.07mmol) and 5% palladium on
carbon (210mg, Sigma-Aldrich) in methanol (35mL) was stirred at a temperature
of about
25 C for 16h in a hydrogen atmosphere. After the Pd/C was filtered off, the
mixture was
washed with Et0Ac and methanol, and the filtrate was concentrated under
reduced pressure.
The resulting solid was suspended with 3:2 n-hexane:diethyl ether which was
filtered and
washed with n-hexane to provide the compound of formula NC as a pale yellow
solid (yield
87%).
The identity of the compound of formula NC, tert-butyl 3-aminopyridin-2-
ylcarbamate,
was confirmed using 1H NMR.
Compound NC: 1H NMR: 6H (400 MHz, CDC13): 7.76 (1H, d, J=1.5Hz), 7.10 (1H,
dd, J=8.4Hz, J=1.5Hz), 6.99 (1H, dd, J=8.4Hz, J=4.8Hz), 1.52 (9H, s).
A mixture of the compound of formula NC (710mg, 3.4mmol), the compound of
formula BA (5.1mmol), NaBH(OAc)3 (10.2mmol) and AcOH (5.1mmol) in chloroform
(18mL) was stirred at a temperature of about 25 C for 16h. After quenching
with saturated
NaHCO3 solution, the mixture was extracted with chloroform, dried (MgSO4), and
concentrated under reduced pressure. The residue was chromatographed with an
amino-silica
gel column (Yamazen Corp. W091-01) eluted with a gradient of from 5%:95%
Et0Ac:n-
hexane to 20%:80% Et0Ac:n-hexane to 50%:50% Et0Ac:n-hcxanc to provide the
compound
of formula ND as a colorless solid (yield 63%).
The identity of the compound of formula ND, tert-butyl 3-(1-
cyclooctylpiperidin-
4-ylamino)pyridin-2-ylcarbamate, was confirmed using 'H NMR.
Compound ND: '11. NMR: 8H (400 MHz, DMSO-d6): 8.59 (1H, s), 7.60 (1H, t,
J=411z), 7.01 (2H, d ), 4.67 (1H, d, J=8Hz), 3.25 (1H, m), 2.67 (2H, m), 2.35-
2.30 (211, m),
1.88-1.85 (211, m), 1.69-1.60 (2H, m), 1.56-1.32 (25H, m).
To a suspension of the compound of formula ND (317mg, 0.79mmol) in Et0Ae (5mL)
at a temperature of about 25 C was added 4N HC1 in Et0Ac (7.9mmol) which was
stirred at
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about 25 C for lh and then for 3h more at 50 C. After neutralization with 28%
aqueous
ammonia, the pH was adjusted within the range of from about 13 to about 14.
Thereafter, the
mixture was extracted three times with Et0Ac, the organic layer was dried
(MgSO4), and
concentrated under reduced pressure to provide 237mg of the compound of
formula NE as a
brown solid (yield >99%).
The identity of the compound of formula NE, N3-(1-cyclooetylpiperidin-4-
yl)pyridine-
2,3-diamine, was confirmed using IliNMR.
Compound NE: '11 NMR: Si, (400 MHz, CDC13): 7.80 (1H, d, J=4Hz), 7.66 (1H, s),
6.39 (1H, d, J=4Hz), 4.12 (1H, m), 2.79 (1H, m), 2.68-2.61 (6H, m), 2.43 (2H,
m), 1.92-1.48
(24H, m).
To a mixture of the compound of formula NE (168mg, 0.79mmol) in methylene
chloride (10mL) at 0 C was added dropwise over 10min methyl 2-chloro-2-
oxoacetate
(0.79mmol) in methylene chloride (3mL). The resulting reaction mixture was
stirred at 0 C for
30min. After quenching with saturated NaHCO3 solution, the mixture was
extracted three
times with chloroform. Thereafter, the organic layer was dried (MgSO4) and
concentrated
under reduced pressure. At a temperature of about 25 C, the resulting oil was
mixed with
Et0H (4mL) and the mixture was then added to sodium methoxidc (1.09mmol). The
reaction
mixture was stirred at 70 C for lh. After concentration under reduced
pressure, to the resulting
oil was added water (0.5mL) and 2N HC1(1mL). The resulting precipitate was
filtered,
washed with 90%:10% water:Me0H, and dried under reduced pressure at 60 C for
12h to
provide the dihydrochloride of Heterocyclic-Substituted Piperidine Compound 66
as a
colorless solid.
The identity of neterocyclie-Substituted Piperidine Compound 66,
1-(1-cyclooetylpiperidin-4-yl)pyrido[3,2-b]pyrazine-2,3(1H,4H)-dione, was
confirmed using
'H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 66: 111 NMR: on (300 MHz, DMSO-
d6): 12.39 (1H, s), 9.8 (1H, br), 8.27 (1H, m), 8.14 (111, d, J=4.5Hz), 7.21
(111, dd, J=4.5Hz,
J=8.1Hz), 4.91 (1H, m), 3.45-3.3 (6H, m), 2.99 (2H, m), 2.02 (2H, m), 1.99
(2H, m), 1.58-1.46
(11H, m); LC/MS, nilz = 357 [M + HJ (Calc: 356.5).
To a mixture of the compound of formula NE (302mg, lmmol) in methylene
chloride
(30mL) at 0 C was added dropwise over 2h malonyl dichloride (1.5mmol) in
methylene
chloride (30mL). Thereafter, the resulting reaction mixture was stirred at a
temperature of
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about 25 C for 3 days. After concentration under reduced pressure, the
resulting oil was
chromatographed with a silica gel column eluted with a gradient of from
97%:3%:0.3%
chloroform:MeOH:28% aqueous ammonia to 90%:10%:0.1% chloroform:MeOH:28%
aqueous
ammonia to provide a yellow amorphous solid. The solid was mixed with 1:1
Et0Ac:Me0H
(2mL) and added to 4N HC1 in Et0Ac (0.5mL) at a temperature of about 25 C to
provide a
white precipitate. The precipitate was filtered and washed with 9:1 diethyl
ether:Me0H. The
resulting colorless solid was dried under reduced pressure at 60 C for 12h to
provide 60mg of
the dihydrochloride of Heterocyclic-Substituted Piperidine Compound 67 (yield
14%).
The identity of Heterocyclic-Substituted Piperidine Compound 67,
1-(1-cyclooetylpiperidin-4-y1)-1H-pyrido[3,2-b][1,41diazepine-2,4(3H,5H)-
dione, was
confirmed using '11 NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 67: IFINMR: (300 MHz, CD30D):
8.36 (1H, dd, J=1.5Hz, J=4.8Hz), 7.97 (1H, dd, J=8.1Hz, J=1.5Hz ), 7.37 (1H,
dd, J=8.1Hz,
J=4.8Hz), 4.23 (1H, m), 3.53-3.42 (4H, m), 3.27-3.13 (3H, m), 2.78 (2H, m),
2.14-1.54 (16H,
m); LC/MS, tn/z = 371.0 [M + H]4 (Calc: 370.4).
5.26 Example 26
o,CH3
o-CH3 (00(.61
,
ve .3 = O=rw
,NH2 CI 0 NH LIAIH4 NH
0 a NH
ICµANH NHNH `-'4to A N-44
N 0 a 0
(2)
9.5
At 0 C, 4-methoxybenzoyl chloride (3.03g, 17.8mmol, Sigma-Aldrich) in 10mL of
dry
methylene chloride was added dropwise to a mixture of the compound of formula
BB (5.37g,
17.8mmol), TEA (2.48mL, 17.8mmol), and 53mL of dry methylene chloride. The
reaction
mixture was stirred at 0 C for lh. After concentration under reduced pressure,
the resulting
solid was filtered and washed with methylene chloride. After drying under
reduced pressure,
8g of the compound of formula OA was obtained.
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The identity of the compound of formula OA, N-(2-(1-cyclooetylpiperidin-
4-ylamino)pheny1)-4-methoxybenzamide, was confirmed using 11-1 NMR.
Compound OA: 'H NMR: ö,1 (400 MHz, DMSO-d6): 9.61 (1H, s), 7.97 (211, d,
J=8.8Hz), 7.18 (1H, m), 7.11 (1H, m), 7.04 (211, d, J=8.0Hz), 6.80 (1H, m),
6.66 (1H, m), 4.88
(111, m), 3.83 (3H, s), 3.57 (1H, m), 3.10-3.33 (41-1, cm), 1.89-2.20 (5H,
cm), 1.46-1.87 (14H,
cm).
A slurry of the compound of formula OA in 100mL of dry THF was added to a
stirred
solution of lithium aluminum hydride (LiA1H4,1.43g, 37.6mmol, Sigma-Aldrich)
in 50mL of
dry THF at 0 C, then heated to reflux for 3h. Thereafter, the reaction mixture
was cooled to a
temperature of about 25 C and water (1.43mL), 2N aqueous NaOH (1.43mL), water
(4.29mL),
and chloroform were added in that order. After filtering the resulting mixture
through a pad of
CELITE, the filtrate was extracted with chloroform. The organic layer was
dried (Na2SO4),
filtered, and concentrated to dryness under reduced pressure to provide 7.2g
of the compound
of formula OB.
The identity of the compound of formula Q, N1-(1-cyclooctylpiperidin-4-y1)-N2-
(4-
methoxybenzyl)benzene-1,2-diamine, was confirmed using 1H NMR.
Compound OB: NMR:
614(400 MHz, DMSO-d6): 7.27 (211, d, J=8.41-1z), 6.87
(2H, d, J=8.4Hz), 6.48 (2H, m), 6.42 (1H, m), 6.39 (111, m), 5.15 (111, t,
J=5.2Hz), 4.28 (1H, d,
J-6.8Hz), 4.19(211, d, J=5.2Hz), 3.72 (3H, s), 3.13 (1H, m), 2.73 (211, m),
2.55 (1H, m), 2.27
(2H, m), 1.93 (2H, m), 1.31-1.70 (16H, cm).
To a mixture of the compound of formula OB (3.4g, 8.08mmol) and 60mL of THF
was
added ethyl isocyanatidocarbonate (1.48mL, 12.11mmol, Sigma-Aldrich). The
mixture was
sealed in a microwave reaction vessel and warmed to 150 C with microwave
irradiation and
stirring for 45 mm. Thereafter, the reaction mixture was concentrated to
dryness under
reduced pressure. The resulting solid was filtered then washed with ethyl
acetate. After drying
under reduced pressure, 2.9g of Heterocyclic-Substituted Piperidine Compound
68 was
obtained (yield 73%).
The identity of Heterocyclic-Substituted Piperidine Compound 68,
1-(1-cyclooctylpiperidin-4-y1)-5-(4-methoxybenzy1)-1H-
benzo[f][1,3,5]triazepine-2,4(3H,5H)-
dione, was confirmed using ill NMR and LC/MS.
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Heterocyclic-Substituted Piperidine Compound 68: 11-1 NMR: on (400 MHz, DMSO-
d6): 8.79 (1H, s), 7.49 (1H, m), 7.31 (1H, m), 7.25 (2H, m), 7.11 (2H, d,
J=8.4Hz), 6.79 (2H,
d, 5.20 (1H, d, I-20Hz), 4.73 (1H, d, J-20Hz), 3.66 (3H, s), 3.53
(1H, m), 2.75 (1H,
m), 2.64 (1H, m), 2.17 (2H, m), 2.05-1.70 (3H, cm), 1.31-1.70 (16H, cm); LC/MS
(100%, tr =
2.79 min), in/z = 490.9 [M + I-1]} (Calc: 490.0).
0'CH3 0.CH3 0-CH3
0
is NH 06
N-4 )-0 100 N
o ck:.) o a 0 0
Pd/C, H2
NaH
02
HTEAATU CH3NH2
0-CH3
H 0
0
NNH soN--fN
--(
0 0 bH3 CAN NbHH3
Heterocyclic-Substituted Piperidine Compound 68 (500mg, 1.02mol) in 5mL of DMF
was added dropwise to a suspension of NaH (61mg, 1.53mmol, Sigma-Aldrich) in
2mL of
DMF at 0 C. Thereafter, the reaction mixture was stirred at a temperature of
about 25 C for
lh. Then, benzyl 2-bromoacetate (1934, 1.22mmol, TCI America) was added to the
reaction
mixture at 0 C followed by stirring at a temperature of about 25 C for 3h.
Water was then
added to the reaction mixture followed by extraction with Et0Ac. The organic
layer was
washed with water, dried (Na2SO4), filtered, and concentrated to dryness under
reduced
pressure to provide 844mg of Heterocyclic-Substituted Pipefidine Compound 69,
benzyl 2-(1-
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(1-cyclooctylpiperidin-4-y1)-5-(4-methoxybenzy1)-2,4-dioxo-4,5-dihydro-IH-
benzo[4[1,3,5]triazepin-3(2H)-ypacetate.
A mixture of Heterocyclic-Substituted Piperidinc Compound 69 (844mg), 10%
palladium on carbon (254mg, N.E. Chemcat, Tokyo, Japan), and methanol (20mL)
was stirred
under a hydrogen atmosphere at a temperature of about 25 C for 2h. After the
Pd/C was
filtered off, the remaining material was washed with methanol and DMF and the
filtrate was
concentrated under reduced pressure to provide a solid. The resulting solid
was washed with
Et0Ac to provide 500mg of Heterocyclic-Substituted Piperidine Compound 70 as a
gray solid
(yield 89% for two steps).
The identity of Heterocyclic-Substituted Piperidine Compound 70,
2-(1-(1-cyclooctylpiperidin-4-y1)-5-(4-methoxybenzy1)-2,4-dioxo-4,5-dihydro-1H-
benzo[f][1,3,5]triazepin-3(2H)-yl)acetic acid, was confirmed using MS.
Heterocyclic-Substituted Piperidine Compound 70: MS, in/z = 549.1 [M +
(Calc:
548).
To a mixture of Heterocyclic-Substituted Piperidine Compound 70 (100mg,
0.182mmol), HATU (2-(3H41,2,31triazolo[4,5-b]pyridin-3-y1)-1,1,3,3-
tetramethyluronium
hexafluorophosphate(V), 83.3mg, 0.219mmol, Peptide Institute/Peptides
International,
Louisville, KY), triethylamine (50.71.iL, 0.364mmo1) and DMF (10mL) was added
methanamine (as a 2M THF solution, 109pL, 0.219mmol, Sigma-Aldrich). The
reaction
mixture was stirred at a temperature of about 25 C for 2h. Water was then
added to the
reaction mixture followed by extraction with Et0Ac. The organic layer was
washed with
water, dried (Na2SO4), filtered, and concentrated to dryness under reduced
pressure to provide
the Heterocyclic-Substituted Piperidine Compound 71, 2-(1-(1-
cyclooctylpiperidin-4-y1)-5-(4-
methoxybenzyl)-2,4-dioxo-4,5-dihydro-1H-benzo[f][1,3,51triazepin-3(211)-y1)-N-
methylacetamide.
At a temperature of about 25 C, eerie ammonium nitrate (CAN, 559mg, 1.02mmol,
Nacalai Tesque, Koyoto, Japan) was added portionwise over a 10min period to a
stirred
mixture of the quantity of Heterocyclic-Substituted Piperidine Compound 71
prepared above
and acetonitrile:water (4.5mL:0.5mL). Then, the reaction mixture was stirred
at 50 C for 5h.
Thereafter, the mixture was cooled to a temperature of about 25 C, saturated
aqueous NaHCO3
was added, and the mixture was extracted with chloroform. The organic layer
was dried
(Na2SO4), filtered, and concentrated under reduced pressure. The residue was
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chromatographed with a silica gel column eluted with a gradient of from
0%:100%
CHC13:Me0H to 80%:20% CHC11:MeOH. The product fractions were combined and
concentrated to dryness under reduced pressure to provide 21.7mg of
Heterocyclic-Substituted
Piperidine Compound 72 (yield 27% for two steps).
The identity of Heterocyclic-Substituted Piperidine Compound 72,
2-(1-(1-cyclooctylpiperidin-4-y1)-2,4-dioxo-4,5-dihydro-1H-
benzo[f][1,3,5]triazepin-3(2H)-
y1)-N-methylacetamide, was confirmed using 1H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 72: 1H NMR: Sit (400 MHz, DMSO-
d6): 9.80 (1H, s), 7.77 (1H, m), 7.36 (IH, m), 7.24 (21-1, m), 7.11 (I H, m),
3.93 (2H, s), 3.68
(1H, m), 2.73 (2H, m), 2.51 (3H, s), 2.20 (2H, m), 2.05 (1H, m), 1.97 (2H, m),
1.31-1.70 (16H,
cm); LC/MS (100%, t],- = 1.87 min), m/z = 456.1 [M + Hr (Calc: 455).
HN¨N FH3
HN--4c
NrN
N,
Nõ:01 CH3
73 74 75
Heterocyclic-Substituted Piperidine Compounds 73, 74 and 75 were prepared from
the
compound of formula L2 as described above except that dimethylamine, pyridin-3-
amine, or
morpholine, respectively, was used in place of methanamine.
The identity of Heterocyclic-Substituted Piperidine Compound 73,
2-(1-(1-cyclooctylpiperidin-4-y1)-2,4-dioxo-4,5-dihydro-1H-
benzo[1[1,3,5]triazepin-3(211)-
y1)-N,N-dimethylacetamide, was confirmed using 11-1NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 73: Iff NMR: 6H (400 MHz, DMS0-
d6): 9.80 (1H, s), 7.36 (1H, m), 7.21 (2H, m), 7.13 (1H, m), 4.21 (2H, s),
3.74 (1H, m), 2.93
(3H, s), 2.80 (2H, m), 2.73 (3H, s), 2.31 (1H, m), 2.11 (1H, m), 1.99 (2H, m),
1.31-1.70 (16H,
cm); LC/MS (100%, t, = 1.66 min), m/z = 442.08 [M + E]+ (Calc: 441).
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The identity of Heterocyclic-Substituted Piperidine Compound 74,
2-(1-(1-cyclooctylpiperidin-4-y1)-2,4-dioxo-4,5-dihydro-1H-
benzo[f][1,3,5]triazepin-3(2H)-
y1)-N-(pyridin-3-yl)acetamide, was confirmed using 11-1NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 74: 11-1NMR: 5E1(400 MHz, DMS0-
d6): 10.34 (1H, brs), 9.96 (1H, s), 8.66 (1H, m), 8.24 (1H, m), 7.95 (1H, m),
7.42 (1H, m),
7.26 (3H, m), 7.16(111, m), 4.22 (2H, s), 3.75 (1H, m), 2.74 (2H, m), 1.99
(1H, m), 1.31-1.88
(2011, cm); LC/MS (100%, tr = 1.27 min), m/z = 505.0 [M + H1+ (Calc: 504).
The identity of Heterocyclic-Substituted Piperidine Compound 75,
I -(1-cyclooctylpiperidin-4-y1)-3-(2-morphol ino-2-oxoethyl)-1H-
benzo[f][1,3,5]triazepine-
2,4(3H,511)-dione, was confirmed using 1HNMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 75: 1H NMR: 5H (400 MHz, DMSO-
d6): 10.25 (1H, brs), 9.89 (1H, s), 7.47 (1H, m), 7.21 (31-1, m), 4.26 (2H,
s), 4.14 (1H, m), 3.50
(4H, m), 3.36 (4H, m), 3.14(211, m), 2.66 (I H, m), 2.17 (1H, m), 1.99 (2H,
m), 1.31-1.70
(16H, cm); LC/MS (100%, tr = 1.77 min), m/z = 497.8 [M + H]+ (Cale: 497).
5.27 Example 27
'C H3
.
= =
H40
10 NH 1101 N 3
N CH 0 Nf-CH3
3 N-4
HBr a 0 \-cH3 (1) 0
Br-, f-CH3
N 2HCI
\-0H3 (..:3
CAN
L LZ
Heterocyclic-Substituted Piperidine Compound 68 (200mg, 0.408mo1) in 3mL of
DMF
was added dropwise to a suspension of NaH (48mg, 1.224mmol) in lmL of DMF at 0
C, and
the mixture was stirred at a temperature of about 25 C for I h. After cooling
the reaction
mixture to 0 C, 2-(diethylamino)ethyl bromide hydrobromide (256mg, 0.980mmol,
Sigma-
Aldrich) and TEA (1364, 0.980mmol) were added. The resulting mixture was
heated to 50 C
and remained at that temperature for 3h. The reaction mixture was cooled to a
temperature of
about 25 C, water was added, and the mixture was extracted with ethyl acetate.
The organic
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layer was washed with water, dried (Na2SO4), filtered, and concentrated to
dryness under
reduced pressure to provide 275mg of Heterocyclic-Substituted Piperidine
Compound 76, 141-
cyclooctylpiperidin-4-y1)-3-(2-(diethylamino)ethyl)-5-(4-methoxybenzy1)-1H-
benzo[f][1,3,5]triazepine-2,4(3H,5H)-dione.
Using ceric ammonium nitrate, Heterocyclic-Substituted Piperidine Compound 77
was
prepared as described in Example 26 except that Heterocyclic-Substituted
Piperidine
Compound 76 was used in place of Heterocyclic-Substituted Piperidine Compound
71. After
concentrating to dryness under reduced pressure, the residue was mixed with
2mL of ethyl
acetate. To this was added lmL of 4M HC1 in ethyl acetate. After again
concentrating to
dryness under reduced pressure, the resulting residue was triturated with
methanol, filtered,
and dried under reduced pressure to provide 79mg of the dihydrochloride of
Heterocyclic-
Substituted Piperidine Compound 77 (yield 36% for two steps).
The identity of Heterocyclic-Substituted Piperidine Compound 77,
1-(1-cyclooetylpiperidin-4-y1)-3-(2-(diethylamino)ethyl)-1H-benzo
[f][1,3,5]triazepine-
2,4(3H,5H)-dione, was confirmed using NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 77: NMR: b
(400 MHz, DMSO-
d6): 10.63 (1H, brs), 10.48 (1H, brs), 10.16 (1H, s), 7.49 (1H, m), 7.31 (1H,
m), 7.20 (2H, m),
4.19 (1H, m), 3.73 (2H, m), 3.35 (2H, m), 3.14 (4H, m), 2.97 (4H, m), 2.70
(1H, m), 2.26 (1H,
m), 1.98 (2H, m), 1.31-1.70 (15H, cm), 0.97-1.16 (6H, m); LC/MS (100%, tr =
2.08 min), nt/z
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5.28 Example 28
N=N, OH
N N 0 0
HCI N 0 0
N 0 0
Ly< H . RI
C
N-c====.,CH
+ 3
H36 OH
C _________________________________________________
NCI DIEA 111 aCIT<N 0
78
From the sodium salt of Heterocyclic-Substituted Piperidine Compound 50, the
synthesis of which is described in Example 18, the carboxylic acid
hydrochloride was
5 prepared. To a mixture of the hydrochloride of Heterocyclic-Substituted
Piperidine Compound
50 (200mg, 0.46mmol) and dry DMF (5mL) was added 1-hydroxybenzotriazole
(94.6mg,
0.70mmol, Sigma-Aldrich) and N-ethyl-dimethylaminopropyl carbodiimide
hydrochloride
(108.6mg, 0.70mmol, Sigma-Aldrich). Thereafter, piperidine (0.069mL, 0.70mmol)
and DIEA
(0.244mL, 1.38mmol) were added and the reaction mixture was stirred at a
temperature of
10 about 25 C for 18h. The mixture was partitioned between an aqueous
potassium carbonate
solution (100mL) and ethyl acetate (100mL). The organic phase was separated,
dried
(MgSO4), and concentrated to dryness under reduced pressure to provide a
yellow gum that
was chromatographed by flash silica eluted with 200:10:1 Et0Ac:MeOH:ammonia to
provide
28mg of Heterocyclic-Substituted Piperidine Compound 78 as a as a white solid.
15 The identity of Heterocyclic-Substituted Piperidine Compound 78, 1-(1-
cycloocty1-5-
(piperidine-l-carbony1)-1,2,3,6-tetrahydropyridin-4-y1)quinoxaline-2,3(1H,414)-
dione, was
confirmed using IH NMR and TLC.
Heterocyclic-Substituted Piperidine Compound 78: 1HNMR: 811 (400MHz, CDC13):
11.9 (1H, s), 6.95 (3H, m), 6.85 (1H, m), 3.10-2.85 (5H, m), 2.6 (3H, m), 2.20
(1H, m), 1.90
20 (1H, m), 1.65-1.10 (21H, m); TLC (Si02) 200:10:1 Et0Ac:MeOH:ammonia: Rf=
0.38 with
UV detection, Dragendorffs reagent.
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N 0
N 0 0
0
79
Heterocyclic-Substituted Piperidine Compound 79 was prepared in a manner
similar to
that described above except that morpholinc was used in place of piperidine.
The identity of Heterocyclic-Substituted Piperidine Compound 79, 1-(1-
cycloocty1-5-
(morpholine-4-carbonyl)-1,2,3,6-tetrahydropyridin-4-yOquinoxaline-2,3(1H,4H)-
dione, was
confirmed using NMR.
Heterocyclic-Substituted Piperidine Compound 79: 1H NMR: oil (400MHz, CDCI3):
12.1 (1H, s), 7.15 (3H, m), 7.00 (1H, m), 3.60-3.35 (411, m), 3.15 (1H, m),
3.00 (1H, m), 2.78
(311, m), 2.30 (1H, m), 2.10(111, m), 1.80-1.39 (14H, m).
N
N 0 0
H *
80
Heterocyclic-Substituted Piperidine Compound 80 was prepared in a manner
similar to
that described above except that benzylamine (Sigma-Aldrich) was used in place
of piperidine.
The identity of Heterocyclic-Substituted Piperidine Compound 80, N-benzyl-
1-cyc loocty1-4-(2,3-dioxo-3,4-dihydroquinoxal in-1(2H)-y1)-1,2,5,6-
tetrahydropyridine-
3-carboxamide, was confirmed using Ili NMR and TLC.
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Heterocyclic-Substituted Piperidine Compound N: 11-1 NMR: H (400MHz, CDCI3):
8.08 (1H, t, J=6.1Hz), 7.20-7.06 (6H, m), 7.01 (1H, d, J=8.9Hz), 6.81 (1H, d,
J=8.9Hz), 4.10
(2H, ddd, J= 16.7, 6.1Hz), 2.77 (3H, m), 2.37 (1H, m), 2.15 (1H, m), 1.84-1.46
(14H, m); TLC
(SiO2) 40:10:1 Et0Ac:MeOH:ammonia: Rf = 0.14 with UV detection, Dragendorffs
reagent.
5.29 Example 29
0 H3C N, NH2
(15 I ,=== 1H
,.,NO2 Pd/C, H2
H2 F3C 0
.4
H3C0 N NH2 H3C0 N NH2
NaBH(OAc)3 F3C 0
PA PB EQ
ciYiLcr
H H
H3co.rf): H3ootcl = H3C I H
N1
0 0 0
Pd(OH)2/0, H2
K2CO3
KI F3C-4
112 11 EL3
In 200mL of methanol, the compound of formula PA, 6-methoxy-3-nitropyridin-
2-amine (3.45g, 20.0mmol, Sigma-Aldrich) was suspended. To this, 10% palladium
on carbon
(350mg) was added and the reaction mixture was stirred for 6h under a hydrogen
atmosphere
at a temperature of about 25 C. The mixture was filtered through CEL1TE and
concentrated to
dryness under reduced pressure to provide 2.78g of the compound of formula PB
as a violet
solid (yield >99%).
The identity of the compound of formula PB, 6-methoxypyridine-2,3-diamine, was
confirmed using IN NMR.
Compound PB: NMR: SH (CDC13): 6.93 (1H, d, J=8.1Hz), 6.04(111, d, J=8.1Hz),
3.80 (3H, s).
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The compound of formula PB (417mg, 3.0mmol) and
1-(2,2,2-trifluoroacetyl)piperidin-4-one (702mg, 3.6mmol, Sigma-Aldrich) were
suspended in
30mL of dry chloroform. To this, sodium triacetoxyborohydride (1.27g, 6.0mmol)
was added
and the reaction mixture was stirred for 3h at a temperature of about 25 C.
Then, the mixture
was poured into aqueous NaHCO3 (20mL) and extracted twice with chloroform
(30mL for
each extraction). The extracts were combined, dried (MgSO4), and concentrated
to dryness
under reduced pressure. The residue was chromatographed with a silica gel
column eluted
with a gradient of from 20%:80% Et0Ac:n-hexane to 60%:40% Et0Ac:n-hexane to
provide
668mg of the compound of formula PC as a violet solid (yield 70%).
The identity of the compound of formula PC, 1-(4-(2-amino-6-methoxypyridin-
3-ylamino)piperidin-1-y1)-2,2,2-trifluoroethanone, was confirmed using 1H NMR.
Compound PC: 1H NMR: 3H (CDC13): 7.01 (1H, d, J=8.1Hz), 6.06 (1H, d, J=8.1Hz),
4.50 (1H, brs), 4.35-4.40 (1H, m), 3.94-3.99 (1H, m), 3.82 (3H, s), 3.19-3.36
(2H, m), 3.00-
3.10 (1H, m), 2.04 (2H, m), 1.39-1.53 (2H, m).
A mixture of the compound of formula PC (646mg, 2.0mmol) and 200mL of dry
dichloromethane was added dropwise to a mixture of malonyl dichloride (57Img,
4.0mmol)
and 200mL of dry dichloromethane. The resulting reaction mixture was stirred
for 3h under a
nitrogen atmosphere at 0 C. The mixture was allowed to warm to a temperature
of about 25 C
for 20h. Then, the reaction mixture was poured into aqueous NaHCO3 (300mL) and
extracted
twice with chloroform (200mL for each extraction). The extracts were combined,
dried
(MgSO4), and concentrated to dryness under reduced pressure. The residue was
chromatographed with a silica gel column eluted with a gradient of from
70%:30% Et0Ac:n-
hexane to 100%:0% Et0Ac:n-hexane to provide 548mg of the compound of formula
PD as a
colorless solid (yield 70%).
The identity of the compound of formula PD 7-methoxy-
1-(1-(2,2,2-trifluoroacetyl)piperidin-4-y1)-1H-pyrido[3,2-b][1,4]diazepine-
2,4(3H,5H)-dione,
was confirmed using 1H NMR.
Compound PD: 11-1NMR: on (CDC13): 7.73 (1H, s), 7.50 (1H, dd, J=10.4, 9.1Hz),
6.66 (1H, d, J=9.1Hz), 4.71-4.44 (2H, m), 4.15-4.01 (1H, m), 3.92(311, s),
3.43 (IH, d,
J=12.7Hz), 3.32 (1H, d, J=12.7Hz), 3.22-3.16 (1H, m), 2.84-2.78 (1H, m), 2.29-
2.26 (1H, m),
2.02-1.97 (1H, m), 1.69-1.62 (2H, m).
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Potassium carbonate (1.00g, 7.24rnmol) was added to a mixture of the compound
of
formula PD (700mg, 1.81mmol) and 20mL of methanol and the reaction mixture was
stirred
for 5h at a temperature of about 25 C. Thereafter, the mixture was
concentrated to dryness
under reduced pressure and the resulting solid was suspended in 20mL of
acetonitrile. To this,
the compound of formula ICH (855mg, 4.52mmol) and potassium iodide (30mg,
0.181mmol)
were added and the reaction mixture was refluxed for 6h. Then, the reaction
mixture was
poured into water (30mL) and extracted twice with chloroform (50mL for each
extraction).
The extracts were combined, dried (MgSO4), and concentrated to dryness under
reduced
pressure. The residue was chromatographed with an amino-silica gel column
eluted with a
gradient of from 70%:30% Et0Ac:n-hexane to 100%:0% Et0Ac:n-hexane to provide
548mg
of Heterocyclic-Substituted Piperidinc Compound 81 as a pale yellow solid
(yield 70%).
The identity of Heterocyclic-Substituted Piperidine Compound 81, (Z)-1-(1-
(cyclooct-
2-enyl)piperidin-4-y1)-7-methoxy-1H-pyrido[3,2-b][1,4]diazepine-2,4(3H,5H)-
dione, was
confirmed using '11 NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 81: 1H NMR: H (DMSO-do): 10.59
(1H, s), 7.81 (1H, dd, J=8.6, 1.8Hz), 6.72 (1H, d, J=8.6Hz), 5.67-5.65 (1H,
m), 5.46-5.43 (1H,
m), 3.98-3.95 (1H, m), 3.86 (3H, s), 3.49 (IH, d, J=12.2Hz), 3.27-3.24 (1H,
m), 2.94-2.89 (3H,
m), 2.20-1.21 (16H, m); LC/MS (100%, tr = 1.72 min), in/z ----- 399.0 [M + H]+
(Cale: 398.2).
A mixture of Heterocyclic-Substituted Piperidine Compound N (434mg, 1.09mmol),
20% Pd(OH)2 on carbon (90mg, Sigma-Aldrich), and methanol (25mL) was stirred
at a
temperature of about 25 C for 14h in a hydrogen atmosphere. After filtration
through
CEL1TE, the filtrate was concentrated under reduced pressure to provide 425mg
of
Heterocyclic-Substituted Piperidine Compound 82 as a pale yellow solid (yield
97%).
The identity of Heterocyclic-Substituted Piperidine Compound 82,
1-(1-cyc looctylp iperidin-4-y1)-7-methoxy-1H-pyrido [3 ,2-b][1,4]diazepine-
2,4(3H,514)-dione,
was confirmed using 'H NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 82 : 11-1 NMR: SH (DMSO-do):
10.59
(1H, s), 7.80 (1H, d, J=8.6Hz), 6.72 (1H, d, J=8.6Hz), 3.94 (1H, m), 3.86 (3H,
s), 3.49 (1H, d,
J=12.7Hz), 2.93 (1H, d, J=12.7Hz), 2.73 (211, m), 2.21 (2H, m), 2.01-1.85
(211, m), 1.64-1.29
(17H, m); LC/MS (100%, tr = 1.66 min), m/z = 401.1 [m + H]+ (Calc: 400.3).
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5.30 Example 30
çBz
0 nNH
Lt, H3co N
.,LNH
9Bz
NH2 CBZ-CI
r- PXNH F3C-'70
H3C0 N NH2 DIEA H3C0 N NH2 NaBH(OAc)3 F3C".µ0
PB QA Q12
00
CIA}L0'sCH3
CBZ
1110NH
0
j,
H3C0 N.1,1µ N H3C0 N)L)LOCH3 H3C0 IN( NV'N.CH3
0
Na0C2H5 Pd/C. H2
F3C'µ0 F3eµ0
LIE :r fan
K2C\013
H 0
e'N-141 tl 0
H3co N N H3C0 N N
A 0 0
Pd(OH)2/C, H2
114
A mixture of the compound of formula PB (2.00g, 14.3mmol), DIEA (2.96mL,
17.2mmol), and 70mL of dry dichloromethane was cooled to 0 C under a nitrogen
atmosphere.
To this, a mixture of benzyl carbonochloridatc (2.70g, 15.8mL, Sigma-Aldrich)
and 70mL of
dry dichloromethane was added and the reaction mixture was stirred for 1h at 0
C. Then, the
mixture was poured into aqueous NaBC03 (100mL) and extracted twice with
chloroform
(100mL for each extraction). The extracts were combined, dried (MgSO4), and
concentrated to
dryness under reduced pressure. The residue was chromatographed with a silica
gel column
eluted with a gradient of from 35%:65% Et0Ac:n-hexane to 55%:45% Et0Ac:n-
hexane to
provide 3.26g of the compound of formula QA. as a violet solid (yield 83%).
The identity of the compound of formula QA., benzyl 2-amino-6-methoxypyridin-
3-ylcarbamate, was confirmed using 1I-1NMR.
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Compound QA: NMR: 811 (CDCI3): 7.38 (6H, s), 6.10-6.06 (2H, m),
5.18 (2H, s),
4.52 (2H, bs), 3.83 (3H, s).
The compound of formula QB was prepared from 1-(2,2,2-
trifluoroacetyl)piperidin-4-
one in a manner similar to Example 29 except that the compound of formula QA
was used in
place of the compound of formula PB.
The identity of the compound of formula 0.3., benzyl 6-methoxy-
2-(1-(2,2,2-trifluoroacetyppiperidin-4-ylamino)pyridin-3-ylcarbamate, was
confirmed using IH
NMR.
Compound Q: 'H NMR: SF! (CDCI3): 7.37 (5H, s), 7.24 (1H, d, J=8.1Hz), 6.03
(1H,
d, J=8.1Hz), 5.92 (1H, s), 5.17 (2H, s), 4.54 (1H, s), 4.32-4.29 (1H, m), 4.19-
4.11 (1H, m),
3.93-3.90 (1H, m), 3.85 (3H, s), 3.32-3.29 (1H, m), 3.09-3.06 (1H, m), 2.17-
2.09 (2H, m),
1.46-1.43 (21-1, m).
The compound of formula ac. was prepared from ethyl 3-chloro-3-oxopropanoate
in a
manner similar to Example 16 except that the compound of formula Q13 was used
in place of
the compound of formula GA.
The identity of the compound of formula QE, ethyl 343-(benzyloxycarbonylamino)-
6-
methoxypyridin-2-y1)(1-(2,2,2-trifluoroacetyppiperidin-4-yl)amino)-3-
oxopropanoate, was
confirmed using NMR.
Compound QS.: 'H NMR: oH (CDCI3): 8.26-8.24 (1H, m), 7.38-7.30 (6H, m), 6.85
(1H, d, J=8.6Hz), 5.24-5.15 (2H, m), 4.65-4.43 (2H, m), 4.15-3.97 (3H, m),
3.83-3.82 (3H, m),
3.17-3.03 (31-1, m), 2.78-2.66 (1H, m), 2.18-2.12 (1H, m), 1.79-1.70 (2H, m),
1.26-1.19 (4H,
m).
The compound of formula QC (188mg, 0.332mmo1), 10% palladium on carbon
(20mg), and 10mL of methanol were stirred for lh under a hydrogen atmosphere
at a
temperature of about 25 C. The reaction mixture was filtered through CELITE
and
concentrated to dryness under reduced pressure to provide 143mg of the
compound of formula
02 as a colorless amorphous solid (yield >99%).
The identity of the compound of formula QL.I, ethyl 3-03-amino-6-
methoxypyridin-2-
y1)(1-(2,2,2-trifluoroacetyl)piperidin-4-yl)amino)-3-oxopropanoate, was
confirmed using IH
NMR.
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Compound QL): NMR: SH (CDC13): 7.12 (1H, d, J=8.6Hz), 6.69 (111, d,
J=8.6Hz),
4.76-4.69 (111, m), 4.61-4.52 (1H, m), 4.13 (2H, q, J=7.1Hz), 4.01 (1H, m),
3.78 (311, d,
J=8.1Hz), 3.62 (2H, bs), 3.22-3.16 (314, m), 2.84-2.77 (1H, m), 2.28-2.18 (1H,
m), 2.07-1.80
(2H, m), 1.41-1.29 (IH, m), 1.23 (3H, t, J=7.1Hz).
The compound of formula Q was prepared in a manner similar to Example 14
except
that the compound of formula Qp.. was used in place of the compound of formula
FG and
sodium ethoxide (Sigma-Aldrich) was used in place of sodium methoxide.
The identity of the compound of formula Q.E., 7-methoxy-5-(piperidin-4-y1)-
1H-pyrido[2,3-b][1,4]diazepine-2,4(3H,514)-dione, was confirmed using IH NMR.
Compound Q: 'H NMR: 5H (CDC13): 7.40 (114, d, J=8.6Hz), 6.69 (114, d,
J=8.6Hz),
4.54 (1H, m), 3.97 (3H, s), 3.33 (2H, m), 3.15 (2H, m), 2.73-2.58 (3H, in),
1.99 (2H, m), 1.53-
1.44(211, m).
Heterocyclic-Substituted Piperidine Compound 83 was prepared from the compound
of
formula KH in a manner similar to Example 29 except that the compound of
formula Qlf was
used in place of the compound of formula PD.
The identity of Heterocyclic-Substituted Piperidine Compound 83, (Z)-5-(1-
(cyclooct-
2-enyl)piperidin-4-y1)-7-methoxy-1H-pyrido[2,3-b][1,4]diazepine-2,4(3H,5H)-
dione, was
confirmed using NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 83: 'H NMR: 0H (DMSO-d6): 10.22
(111, s), 7.51 (114, d, J=8.6Hz), 6.80 (1H, d, J=8.6Hz), 5.66 (1H, m),
5.49(111, m), 4.25 (1H,
m), 3.86 (3H, s), 3.47 (1H, d, J=12.2fiz), 2.96 (3H, m), 2.65 (1H, d,
J=12.2Hz), 2.22-1.25
(1611, m); LC/MS (98%, tr = 1.77 min), in/z= 399.0 [M + fir (Cale: 398.2).
Heterocyclic-Substituted Piperidine Compound 84 was prepared in a manner
similar to
Example 29 except that Heterocyclic-Substituted Piperidine Compound 83 was
used in place
of Heterocyclic-Substituted Piperidine Compound 81.
The identity of Heterocyclic-Substituted Piperidine Compound 84,
5-(1-cyclooctylpipetidin-4-y1)-7-methoxy-1H-pyrido[2,3-b][1,4]diazepine-
2,4(3H,5H)-dione,
was confirmed using 114 NMR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 84: Ill NMR: OH (DMSO-d6): 10.22
(1H, s), 7.51 (1H, d, J=8.6Hz), 6.79 (111, d, J=8.6Hz), 4.22 (1H, m), 3.86
(3H, s), 3.46 (1H, d,
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J=11.7Hz), 2.97 (1H, d, J=11.7Hz), 2.76-2.53 (3H, m), 2.20 (2H, m), 1.99-1.23
(18H, m);
LC/MS (100%, tr = 1.81 min), nt/z = 401.2 [M + Hr (Cale: 400.3).
5.31 Example 31
1110
0
0
(NH)2C0 KCN 0
+
NANH HO 0
43 -
-\---) NaOH _____(I
HCI NH2
RA RE BQ .1312
To a mixture of cyclooctanone (RA, 17g, 135mmol, Sigma-Aldrich) in ethanol
(200mL) and water (200mL) were added KCN (17.5g, 269mtno1, Sigma-Aldrich)
followed by
ammonium carbonate ([NH412CO3, 51.8g, 539mmol, Sigma-Aldrich). The resulting
reaction
mixture was stirred at 80 C for 6h. The reaction mixture was evaporated to
dryness under
reduced pressure to provide a white solid precipitate which was filtered,
collected, and dried
for 16h to provide 15.9g of the compound of formula RB, 1,3-
diazaspiro[4.7]dodecane-2,4-
dione (yield 73%).
A mixture of the compound of formula RB (15.9g, 81mmol) in 2N NaOH was
refluxed
for 96h. The reaction mixture was neutralized by the addition of 2N HC1 to
provide a white
solid precipitate which was filtered and collected to provide the compound of
formula RC, 1-
aminocyclooctanecarboxylic acid. The compound of formula RC was dissolved with
hot
phenylmethanol (i.e., benzyl alcohol, Sigma-Aldrich) then concentrated HC1 was
added. The
resulting reaction mixture was refluxed for 16h. After neutralizing the
reaction mixture with
2N NaOH, the resulting mixture was extracted three times with 4:1 CHC13:Me0H.
The
organic portions were combined, washed with water, washed with brine, dried
(MgSO4),
filtered, and concentrated under reduced pressure to provide 920mg of the
compound of
formula RD, benzyl 1-aminocyclooctanecarboxylate (yield 6% for two steps).
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0 0
CH3I
(A)
N + I
ri3t,
0111
RE RF
A mixture of the compound of formula RE (1-benzylpiperidin-4-one, 1,49mo1,
Sigma-
Aldrich) and acetone (1L) was cooled to 0 C. Methyl iodide (94.4mL, 1.51mol)
was added
dropwise over 30min and the resulting reaction mixture was stirred for 3h,
then filtered. The
filter cake was dried under reduced pressure for 18h to provide the compound
of formula RF
as a solid.
NH2 40 1\1")
0 0
NH H3C. 0
)LT 0 N
0 Le.
N/1_ K2CO3 NO (NH2 %A-13
0 + H3C
_____________________________________________________________ N
0
d0Bn doBn
RD RE .11Q RH 88
At a temperature of 90 C, a mixture of the compound of formula RF (10mmol),
Me0H
(6mL) and water (20mL) was added dropwise to a mixture of the compound of
formula RD
(10mmol), K2CO3 (Immol), Me0H (10mL) and water (4mL) over 20min. The resulting
reaction mixture was stirred at 90 C for 48h. After concentration under
reduced pressure, the
mixture was extracted three times with a mixture of Et0Ac and water. The
organic layers
were combined, dried (MgSO4), and concentrated under reduced pressure to
provide a yellow
oil. The resulting oil was chromatographed with a silica gel column eluted
with a gradient of
from 10%:90% Et0Ac:n-hexanc to 50%:50% Et0Ac:n-hexane to provide the compound
of
formula RG, benzyl 1-(4-oxopiperidin-1-yl)cyclooctanecarboxylate.
Sodium triacetoxyborohydride (50mmol) was added to a mixture of the compound
of
formula RG (12.8mmol), and o-phcnylenediamine (3g, 27.8mmol) in 100mL of
CH2C12 at a
temperature of about 25 C. Thereafter, 3mL of acetic acid was added. The
resulting mixture
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was stirred at a temperature of about 25 C for about 16h. Me0H (2mL) and water
(25mL)
were added and the mixture was neutralized with 28% aqueous ammonia to adjust
the pH to
about 8. The organic layer was separated, washed with brine (10mL),
concentrated under
reduced pressure, and chromatographed with a silica gel column eluted with
10:1:1
Et0Ac:MeOH:TEA to provide the compound of formula RH, benzyl
1-(4-(2-aminophenyl am ino)piperi din-l-yl)cyc looctan ecarboxy I ate.
A mixture of the compound of formula RH in 20mL of diethyl oxalate was heated
at
140 C for 16h. After cooling to a temperature of about 25 C, the reaction
mixture was diluted
with Et0Ac, washed with 2N aqueous NaOH (30mL), washed with brine (20mL),
concentrated under reduced pressure, and chromatographcd with a silica gel
column clutcd
with 5:5:0.5:0.5 Et0Ac:hexane:MeOH:TEA to provide Heterocyclic-Substituted
Piperidine
Compound 88.
The identity of Heterocyclic-Substituted Piperidine Compound 88, benzyl 1-(4-
(2,3-
dioxo-3,4-dihydroquinoxalin-1(21-/)-yppiperidin-l-y1)cyclooctanecarboxylate,
was confirmed
using 'N MR and LC/MS.
Heterocyclic-Substituted Piperidine Compound 88: Ili NMR: oH (300 MHz, DMSO-
d6): 11.51 (11-1, s), 7.47 (1H, d, J=8.1Hz), 7.41-7.33 (5H, m), 7.24-7.17 (3H,
m), 5.17 (211, s),
4.58 (1H, br), 3.24 (2H, d, J=11.1Hz), 2.76(211, d, J=9.3Hz), 2.33 (2H, t,
J=10.811z), 2.01-1.47
(16H, m); LC/MS (100%, tr = 1.87 min), ita/z = 490,2 [M + Hr (Cale: 489.3).
Alternatively, the compound of formula RD was prepared by the following route.
0
HOOC NH2 HOOC ISO Br HN¨BOC t1I-12
(BOC)20 0 0
NaOH HCI
DIEA
R.4 RD
To a mixture of the hydrochloride of the compound of formula RC (414mg,
2.00mmol), aqueous 1N NaOH (4mL, 4.00mmol), and dioxane (4mL) at a temperature
of
about 25 C was added (BOC)20 (0.5 lmL, 2.2mmol). After the addition, the
reaction mixture
was stirred for 18h at a temperature of about 25 C. The mixture was quenched
by pouring it
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into aqueous 1N HC1 and extracted with CHC13. The organic portion was dried
(Na2SO4) and
concentrated under reduced pressure to provide a white solid. The solid was
triturated with
iso-propyl ether and collected to provide 221mg of the compound of formula En
as a colorless
solid (yield 41%).
The identity of the compound of formula RI,
1-(tert-butoxycarbonylamino)cyclooctanecarboxylic acid, was confirmed using 1H
NMR.
Compound RI: 1H NMR: 431_3(400 MHz, DMSO-d6): 12.01 (1H, s), 6.90 (1H, s),
1.89-
1.45 (14H, m), 1.35 (9H, s).
To a mixture of the compound of formula RI (215mg, 0.792mmo1) in DMF (1mL) at
a
temperature of about 25 C was added the compound of formula IB (0.103mmol,
0.871mmol)
and DIEA (0.166mL, 0.950mmol). After the addition, the reaction mixture was
stirred for 20h
at a temperature of about 25 C. The mixture was quenched by pouring it into
water. A white
precipitate formed. The precipitate was collected, washed with dilute aqueous
NaHCO3, and
washed with water to provide 240mg of the compound of formula RJ as a white
solid (yield
84%).
The identity of the compound of formula RJ, benzyl
1-(tert-butoxycarbonylamino)cyclooctanecarboxylate, was confirmed using 1H
NMR.
Compound RJ: 1H NMR: H (400 MHz, CDC13): 7.37-7.34 (5H, m), 5.16 (2H, s),
4.69 (1H, s), 2.08-2.04 (4H, m), 1.57 (10H, d, J=8.06Hz), 1.43 (9H, s).
To a suspension of the compound of formula RI in 1,4-dioxane (4mL) and Me0H
(1mL) was added 4N HC1 in 1,4-dioxanc (2mL) at a temperature of about 25 C.
The reaction
mixture was stirred at 25 C for lh. The resulting precipitate was filtered,
washed with diethyl
ether (3mL), and dried under reduced pressure at 70 C to provide the compound
of formula
RD as a solid (yield >98%).
The identity of the compound of formula RD was confirmed using 1H NMR.
Compound RD: 1H NMR: 611(400 MHz, CDC13): 7.40-7.34 (5H, m), 5.21 (2H, s),
2.06-1.71 (14H, m).
Alternatively, Heterocyclic-Substituted Piperidine Compound 88 was prepared by
the
following route.
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BOC BOC
I I H
0 40 NH NHO
C 0 NO
NO
r
BOC NH el N')-(C) H3
.,(NH OHO
0 1) HCI )\
NH2 Cl 0-CH3 2) NaHCO3
0
NB BAc)3 ___________________
a ____________________
d0Bn
d0Bn
N
d0Bn
Jig RK EL 131
The compound of formula RG was prepared from the compounds of formula RD and
RF in a manner similar to that described above (yield 38%).
The identity of the compound of formula RG was confirmed using 1H NMR.
5 Compound RG:
1H NMR: 611 (400 MHz, CDC13): 7.38-7.36 (5H, m), 5.14 (2H, s),
2.92 (4H, t, J=5.62Hz), 2.39 (4H, t, J=5.79Hz), 2.00-1.59 (1411, m).
The compound of formula RG (48.0mmol) and tert-butyl 2-aminophenylcarbamate
(96.0mmol, Sigma-Aldrich) were suspended in 200mL of CH2C12. To this mixture,
sodium
triacetoxyborohydride (30.42g, 144.0mmol, Sigma-Aldrich) and acetic acid
(10mL) were
10 added.
These ingredients were stirred at a temperature of about 25 C for 24h after
which the
reaction mixture was extracted 10 times with about 200mL of water each time.
The organic
layer was dried (MgSO4), filtered, and concentrated to dryness under reduced
pressure to
provide the compound of formula RK as a solid (yield 95%).
The identity of the compound of formula RK, benzyl
I 5 1-(4-(2-
(tert-butoxycarbonylamino)phenylamino)piperidin-l-
yl)cyclooctanecarboxylate,was
confirmed using 1H NMR.
Compound RK: 111 NMR: 6=H (400 MHz, CDC13): 7.46-7.37 (5H, m), 7.07 (211, dd,
J=12.51Hz, 6.13Hz), 6.78-6.71 (211, m), 6.10 (1H, s), 5.16 (311, s), 3.58
(111, dd, J=9.65Hz,
4.95Hz), 3.19-2.90 (4H, m), 2.41-1.34 (18H, m), 2.41 (9H, s).
20 To a
mixture of the compound of formula RK (0.79mmol) in CH2C12 (10mL) at 0 C
was added dropwise over 10min methyl 2-chloro-2-oxoacetate (0.79mmol) in
CH2C12 (3mL).
The resulting reaction mixture was stirred at 0 C for 30min. After quenching
with saturated
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NaHCO3 solution, the mixture was extracted three times with CHC13. Thereafter,
the organic
layer was dried (MgSO4) and concentrated under reduced pressure. At a
temperature of about
25 C, the resulting residue was mixed with ethanol (4mL) and the mixture was
then added to
sodium methoxide (1.09mmol). The reaction mixture was stirred at 70 C for lh.
After
concentration under reduced pressure, to the resulting residue was added water
(0.5mL) and
2N HO (1mL). The resulting precipitate was filtered, washed with 90%:10%
water:Me0H,
and dried under reduced pressure at 60 C for 12h to provide the compound of
formula BL as a
solid (yield >98%).
The identity of the compound of formula L. benzyl
1-(4-(N-(2-(tert-butoxycarbonylamino)pheny1)-2-methoxy-2-
oxoacetamido)piperidin-
1-yl)cyclooctanecarboxylate,was confirmed using IFINMR.
Compound RL: NMR: 5H(400 MHz, CDC13): 7.98 (111, d, J=5.1Hz), 7.42-
7.32
(5H, m), 7.06-7.04 (2H, m), 6.68 (1H, s), 5.10 (2H, s), 4.35 (1H, m), 3.49
(3H, s), 3.02 (2H, t,
J=10.8Hz), 2.90 (1H, t, J=6.0Hz), 2.35 (1H, t, J=6.0Hz), 2.24 (2H, t,
J=12.0Hz), 1.87-1.78 (6H,
m), 1.51-1.27 (19H, m).
To the compound of formula RL (553mg, 0.89rnmol) was added 4N HC1 in Et0Ac
(5.5mL) at 0 C. Thereafter, the reaction mixture was stirred for 30min at a
temperature of
about 25 C. A white precipitate formed. Saturated aqueous NaHCO3 (pH >8) was
added and
the reaction mixture was stirred for 30min at a temperature of about 25 C.
Thereafter, the
mixture was extracted twice with CHC13 (50mL for each extraction). The organic
layers were
combined, washed with water, dried (MgSO4), and concentrated under reduced
pressure to
provide a colorless amorphous solid. The solid was recrystallized from a
mixture of diethyl
ether and iso-propyl ether to provide 333mg of Heterocyclic-Substituted
Piperidine Compound
88 as a white powder (yield 76%).
5.32 Example 32: In vitro ORL-1 Receptor Binding Assay
ORL-1 Receptor Binding Assay Procedures: Membranes from recombinant HEK-
293 cells expressing the human opioid receptor-like receptor (ORL-1) (Receptor
Biology) were
prepared by lysing cells in ice-cold hypotonic buffer (2.5mM MgC12, 50mM
HEPES, pH 7.4)
(10mL/10 cm dish) followed by homogenization with a tissue grinder/Teflon
pestle.
Membranes were collected by centrifugation at 30,000 x g for 15 min at 4 C and
pellets
resuspended in hypotonic buffer to a final concentration 1-3mg/mL. Protein
concentrations
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were determined using the BioRad protein assay reagent with bovine serum
albumen as
standard. Aliquots of the ORL-1 receptor membranes were stored at -80 C.
Radioligand binding assays (screening and dose-displacement) used 0.1 nM [31-
1]-
nociceptin (NEN; 87.7 CUmmole) with 10-20 [tg membrane protein in a final
volume of
500gL binding buffer (10mM MgC12, I mM EDTA, 5% DMSO, 50mM HEPES, pH 7.4).
Non-specific binding was determined in the presence of 10 nM unlabeled
nociceptin
(American Peptide Company). All reactions were performed in 96-deep well
polypropylene
plates for 1 h at about 25 C. Binding reactions were terminated by rapid
filtration onto 96-well
Unifilter GF/C filter plates (Packard) presoaked in 0.5% polyethylenimine
(Sigma).
Harvesting was performed using a 96-well tissue harvester (Packard) followed
by three
filtration washes with 5004 ice-cold binding buffer. Filter plates were
subsequently dried at
50 C for 2-3 hours. Fifty 4/well scintillation cocktail (BetaScint; Wallac)
was added and
plates were counted in a Packard Top-Count for 1 min/well. The data from
screening and
dose-displacement experiments were analyzed using Microsoft Excel and the
curve fitting
functions in GraphPad PRISMTm, v. 3.0, respectively, or an in-house function
for one-site
competition curve-fitting.
ORL-1 Receptor Binding Data: Typically, the Heterocyclic-Substituted
Piperidinc
Compounds will have a K, (nM) of about 300 or less for binding to ORL-1
receptors. In one
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a K,
(nM) of about
100 or less. In another embodiment, the Heterocyclic-Substituted Piperidinc
Compounds of
the invention will have a K, (nM) of about 35 or less. In another embodiment,
the
Heterocyclic-Substituted Piperidine Compounds of the invention will have a K,
(nM) of about
20 or less. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds of the
invention will have a K, (nM) of about 15 or less. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds of the invention will have a Ki (nM) of about
10 or less. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds of the
invention will
have a KJ (nM) of about 4 or less. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds of the invention will have a K, (nM) of about 1 or less.
In another
embodiment, the Heterocyclic-Substituted Piperidine Compounds of the invention
will have a
K, (nM) of about 0.4 or less. In another embodiment, the Heterocyclic-
Substituted Piperidine
Compounds of the invention will have a K, (nM) of about 0.1 or less.
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5.33 Example 33: In vitro ORL-1 Receptor Functional Assay
ORL-1 Receptor 135SIGTPyS Bindin2 Assay Procedures: Membranes from
recombinant HEK-293 cells expressing the human opioid receptor-like (ORL-1)
(Receptor
Biology) were prepared by lysing cells in ice-cold hypotonic buffer (2.5mM
MgC12, 50mM
HEPES, pH 7.4) (10mL/10 cm dish) followed by homogenization with a tissue
grinder/Teflon
pestle. Membranes were collected by centrifugation at 30,000 x g for 15 min at
4 C, and
pellets resuspended in hypotonic buffer to a final concentration of 1-3mg/mL.
Protein
concentrations were determined using the BioRad protein assay reagent with
bovine serum
albumen as a standard. Aliquots of the ORL-1 receptor membranes were stored at
-80 C.
Functional binding assays were conducted as follows. ORL-1 membrane solution
was
prepared by sequentially adding final concentrations of 0.066 tig/pt ORL-1
membrane
protein, 10 gg/mL saponin, 3 1.1,M GDP and 0.20 nM [35S]GTPyS to binding
buffer (100mM
NaC1, 10mM MgC12, 20mM HEPES, pH 7.4) on ice. The prepared membrane solution
(190pL/well) was transferred to 96-shallow well polypropylene plates
containing 104 of 20x
concentrated stock solutions of agonist/nociceptin prepared in DMSO. Plates
were incubated
for 30 min at about 25 C with shaking. Reactions were terminated by rapid
filtration onto 96-
well Unifilter GF/B filter plates (Packard) using a 96-well tissue harvester
(Packard) and
followed by three filtration washes with 2001AL ice-cold binding buffer (10mM
NaH2PO4,
10mM Na2HPO4, pH 7.4). Filter plates were subsequently dried at 50 C for 2-3
hours. Fifty
pL/well scintillation cocktail (BetaScint;Wallac) was added and plates were
counted in
Packard Top-Count for 1 mitt/well. Data are analyzed using the sigutoidal dose-
response curve
fitting functions in GraphPad PRISM v. 3.0, or an in-house function for non-
linear, sigmoidal
dose-response curve-fitting.
ORL-1 Receptor Functional Data: ORL-1 GTP EC50 is the concentration of a
compound providing 50% of the maximal response for the compound at an ORL-1
receptor.
Heterocyclic-Substituted Piperidine Compounds typically will have an ORL-1 GTP
EC50 (nM)
of about 5000 or less to stimulate ORL-1 receptor function. In one embodiment,
the
Heterocyclic-Substituted Piperidine Compounds of the invention will have an
ORL-1 GTP
EC50 (nM) of about 1000 or less. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds of the invention will have an ORL-1 GTP EC50 (nM) of
about 100 or
less. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
of the
invention will have an ORL-1 GTP EC50 (nM) of about 80 or less. In another
embodiment, the
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Heterocyclic-Substituted Piperidine Compounds of the invention will have an
ORL-1 GTP
EC50 (nM) of about 50 or less. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds of the invention will have an ORL-1 GTP EC50 (nM) of
about 35 or
less. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
of the
invention will have an ORL-1 GTP EC50 (nM) of about 15 or less. In another
embodiment, the
Heterocyclic-Substituted Piperidine Compounds of the invention will have an
ORL-I GTP
EC50 (nM) of about 10 or less. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have an ORL-1 GTP EC50 (nM) of about 4 or less. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have an ORL-
1 GTP
EC50 (nM) of about 1 or less. In another embodiment, the Heterocyclic-
Substituted Piperidine
Compounds will have an ORL-1 GTP EC50 (nM) of about 0.4 or less. In another
embodiment,
the Heterocyclic-Substituted Piperidine Compounds will have an ORL-1 GTP EC50
(nM) of
about 0.1 or less.
ORL-1 GTP Emax (%) is the maximal effect elicited by a compound relative to
the
effect elicited by nociceptin, a standard ORL-1 agonist. Typically, the
Heterocyclic-
Substituted Piperidine Compounds of the invention will have an ORL-1 GTP Emax
(%) of
greater than about 50%. In one embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have an ORL-1 GTP Emax (%) of greater than about 75%. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have an ORL-
1 GTP
Emax (%) of greater than about 85%. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have an ORL-1 GTP Emax (%) of greater than about
95%. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have an ORL-1
GTP Emax (%) of about 100% or greater. In another embodiment, the Heterocyclic-
Substituted Piperidine Compounds will have an ORL-1 GTP Emax (%) of about 110%
or
greater.
5.34 Example 34: In vitro -opioid Receptor Binding Assays
u-opioid Receptor Binding Assay Procedures: Radioligand dose-displacement
binding assays for fropioid receptors used 0.2 nM[3H]-diprenorphine (NEN,
Boston, Mass.),
with 5-20mg membrane protein/well in a final volume of 5004, binding buffer
(10mM MgCl2,
1mM EDTA, 5% DMSO, 50mM HEPES, pH 7.4). Reactions were carried out in the
absence
or presence of increasing concentrations of unlabeled naloxone. All reactions
were conducted
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in 96-deep well polypropylene plates for 1-2h at about 25 C. Binding reactions
were
terminated by rapid filtration onto 96-well Unifilter GF/C filter plates
(Packard, Meriden,
Conn.) presoaked in 0.5% polyethylemimine using a 96-well tissue harvester
(Brandel,
Gaithersburg, Md.) followed by performing three filtration washes with 50011L
of ice-cold
binding buffer. Filter plates were subsequently dried at 50 C for 2-3 hours.
BetaScint
scintillation cocktail (Wallac, Turku, Finland) was added (54L/well), and
plates were counted
using a Packard Top-Count for 1 min/well. The data were analyzed using the one-
site
competition curve fitting functions in GraphPad PRISM v. 3.0 (San Diego,
Calif.), or an in-
house function for one-site competition curve-fitting.
}t-onioid Recentor Binding Data: Generally, the lower the K value, the more
effective the Heterocyclic-Substituted Piperidine Compounds will be at
treating pain or
diarrhea. Typically, the Heterocyclic-Substituted Piperidine Compounds will
have a KJ (nM)
of about 3000 or less for binding to ppopioid receptors. In one embodiment,
the Heterocyclic-
Substituted Piperidine Compounds will have a KJ (nM) of about 1000 or less. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds of the invention
will have a
K, (nM) of about 650 or less. In another embodiment, the Heterocyclic-
Substituted Piperidine
Compounds of the invention will have a K, (nM) of about 525 or less. In
another embodiment,
the Heterocyclic-Substituted Piperidine Compounds of the invention will have a
K, (nM) of
about 250 or less. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds of the invention will have a K, (nM) of about 100 or less. In
another embodiment,
the Heterocyclic-Substituted Piperidine Compounds of the invention will have a
K, (nM) of
about 10 or less. In another embodiment, the Heterocyclic-Substituted
Piperidine Compounds
of the invention will have a K, (nM) of about 1 or less. In another
embodiment, the
Heterocyclic-Substituted Piperidine Compounds of the invention will have a K,
(nM) of about
0.1 or less.
5.35 Example 35: In vitro frOpioid Receptor Functional Assays
u-Onioid Receptor Functional Assay Procedures: [35SIGTRyS functional assays
were conducted using freshly thawed p.-receptor membranes. Assay reactions
were prepared
by sequentially adding the following reagents to binding buffer (100mM NaC1,
lOtnM MgC12,
20mM HEPES, pH 7.4) on ice (final condentrations indicated): membrane protein
(0.026mg/mL), saponin (10mg/mL), GDP (3mM) and [35S]GTPyS (0.20 nM; NEN). The
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prepared membrane solution (190AL/well) was transferred to 96-shallow well
polypropylene
plates containing 101.11_, of 20x concentrated stock solutions of the agonist
DAMGO ([D-A1a2,
N-methyl-Phe4 Gly-o15]-enkephalin) prepared in dimethyl sulfoxide (DMSO).
Plates were
incubated for 30 min at about 25 C with shaking. Reactions were terminated by
rapid
filtration onto 96-well Unifilter GF/B filter plates (Packard, Meriden, Conn.)
using a 96-well
tissue harvester (Brandel, Gaithersburg, Md.) followed by three filtration
washes with 2004
of ice-cold wash buffer (10mM NaH2PO4, 10mM Na2HPO4, pH 7.4). Filter plates
were
subsequently dried at 50 C for 2-3h. BetaScint scintillation cocktail (Wallac,
Turku, Finland)
was added (50p.L/well) and plates were counted using a Packard Top-Count for 1
min/well.
Data were analyzed using the sigmoidal dose-response curve fitting functions
in GraphPad
PRISM v. 3.0, or an in-house function for non-linear, sigmoidal dose-response
curve-fitting.
-Opioid Receptor Functional Data: p. GTP EC50 is the concentration of a
compound providing 50% of the maximal response for the compound at a g-opioid
receptor.
Heterocyclic-Substituted Piperidine Compounds typically will have a p. GTP
EC50 (nM) of
about 5000 or less to stimulate pi-opioid receptor function. In one
embodiment, the
Heterocyclic-Substituted Piperidine Compounds of the invention will have a la
GTP EC50 (nM)
of about 4100 or less. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds of the invention will have a p. GTP EC50 (nM) of about 3100 or less.
In another
embodiment, the Heterocyclic-Substituted Piperidine Compounds of the invention
will have a
p GTP EC50 (nM) of about 2000 or less. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds of the invention will have a p, GTP EC50 (nM) of about
1000 or less. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds of the
invention will
have a p. GTP EC50 (nM) of about 100 or less. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds of the invention will have a p. GTP EC50 (nM)
of about 10
or less. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds will have
a p. GTP EC50 (nM) of about 1 or less. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a p. GTP EC50 (nM) of about 0.4 or less. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a p.
GTP EC50
(nM) of about 0.1 or less.
p. GTP Emax (%) is the maximal effect elicited by a compound relative to the
effect
elicited by DAMGO, a standard u agonist. Generally, the p. GTP Emax (%) value
measures
the efficacy of a compound to treat or prevent a Condition such as pain or
diarrhea. Typically,
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the Heterocyclic-Substituted Piperidine Compounds of the invention will have a
It GTP Emax
(%) of greater than about 10%. In one embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have a It GTP Emax (%) of greater than about 20%. In another
embodiment,
the Heterocyclic-Substituted Piperidine Compounds will have a t GTP Emax (%)
of greater
than about 50%. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds
will have a A GTP Emax (%) of greater than about 65%. In another embodiment,
the
Heterocyclic-Substituted Piperidine Compounds will have a A GTP Emax (%) of
greater than
about 75%. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds will
have a A GTP Emax (%) of greater than about 88%. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a A GTP Emax (%) of about 100% or
greater.
5.36 Example 36: In vitro K-opioid Receptor Binding Assays
K-opioid Receptor Bindin2 Assay Procedures: Membranes from recombinant HEK-
293 cells expressing the human kappa opioid receptor (kappa) (cloned in house)
were prepared
by lysing cells in ice cold hypotonic buffer (2.5mM MgC12, 50m1V1 HEPES, pH
7.4) (10mL/10
cm dish) followed by homogenization with a tissue grinder/Teflon pestle.
Membranes were
collected by centrifugation at 30,000 x g for 15 min at 4 C and pellets
resuspended in
hypotonic buffer to a final concentration of 1-3mg/mL. Protein concentrations
were
determined using the BioRad protein assay reagent with bovine serum albumen as
a standard.
Aliquots of kappa receptor membranes were stored at ¨80 C.
Radioligand dose displacement assays used 0.4-0.8 nM [3H]-U69,593 (NEN; 40
Ci/mmole) with 10-20 Ag membrane protein (recombinant kappa opioid receptor
expressed in
HEK 293 cells; in-house prep) in a final volume of 200AL binding buffer (5%
DMSO, 50mM
Trizma base, pH 7.4). Non-specific binding was determined in the presence of
10 AM
unlabeled naloxonc or U69,593. All reactions were performed in 96-well
polypropylene plates
for 1 h at a temperature of about 25 C. Binding reactions were determined by
rapid filtration
onto 96-well Unifilter GF/C filter plates (Packard) presoaked in 0.5%
polyethylenimine
(Sigma). Harvesting was performed using a 96-well tissue harvester (Packard)
followed by
five filtration washes with 2001tL ice-cold binding buffer. Filter plates were
subsequently
dried at 50 C for 1-2 hours. Fifty AL/well scintillation cocktail
(MicroScint20, Packard) was
added and plates were counted in a Packard Top-Count for 1 min/well.
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K-opioid Receptor Binding Data: Typically, the Heterocyclic-Substituted
Piperidine
Compounds will have a Ki (nM) of about 10,000 or less for ic receptors. In one
embodiment,
the Heterocyclic-Substituted Piperidine Compounds will have a Ki (nM) of about
5000 or less.
In another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a Ki
(nM) of about 1000 or less. In another embodiment, the Heterocyclic-
Substituted Piperidine
Compounds will have a Ki (nM) of about 500 or less. In another embodiment, the
Heterocyclic-Substituted Piperidine Compounds will have a Ki (nM) of about 300
or less. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a Ki (nM)
of about 200 or less. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have a Ki (nM) of about 100 or less. In another embodiment, the
Heterocyclic-Substituted Piperidine Compounds will have a Ki (nM) of about 50
or less. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a Ki (nM)
of about 20 or less. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have a Ki (nM) of about 15 or less. In another embodiment, the
Heterocyclic-
Substituted Piperidinc Compounds will have a Ki (nM) of about 10 or less.
5.37 Example 37: In vitro K-Opioid Receptor Functional Assays
K-Opioid Receptor Functional Assay Procedures: Functional [35S]GTP1S binding
assays were conducted as follows. Kappa opioid receptor membrane solution was
prepared by
sequentially adding final concentrations of 0.026 lig/pi kappa membrane
protein (in-house),
10 p.g/mL saponin, 3 uM GDP and 0.20 nM [35S]GTPyS to binding buffer (100mM
NaC1,
10mM MgC12, 20mM HEPES, pH 7.4) on ice. The prepared membrane solution
(19011Uwell)
was transferred to 96-shallow well polypropylene plates containing 10 L of 20x
concentrated
stock solutions of agonist prepared in DMSO. Plates were incubated for 30 min
at a
temperature of about 25 C with shaking. Reactions were terminated by rapid
filtration onto
96-well Unifilter GF/B filter plates (Packard) using a 96-well tissue
harvester (Packard) and
followed by three filtration washes with 2004 ice-cold binding buffer (10mM
NaH2PO4,
10mM Na2HPO4, pH 7.4). Filter plates were subsequently dried at 50 C for 2-3
hours. Fifty
4/well scintillation cocktail (MicroScint20, Packard) was added and plates
were counted in a
Packard Top-Count for 1 min/well.
K-Opioid Receptor Functional Data: lc GTP EC50 is the concentration of a
compound
providing 50% of the maximal response for the compound at a x receptor.
Heterocyclic-
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Substituted Piperidine Compounds typically will have a K GTP EC50 (nM) of
about 10,000 or
less to stimulate lc opioid receptor function. In one embodiment, the
Heterocyclic-Substituted
Piperidine Compounds will have a x GTP EC50 (nM) of about 5000 or less. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a lc
GTP EC50
(nM) of about 2000 or less. In another embodiment, the Heterocyclic-
Substituted Piperidine
Compounds will have a K GTP EC50 (nM) of about 1500 or less. In another
embodiment, the
Heterocyclic-Substituted Piperidine Compounds will have a lc GTP EC50 (nM) of
about 800 or
less. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
will have a
K GTP EC50 (nM) of about 500 or less. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a ic GTP EC50 (nM) of about 300 or less. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a K
GTP EC50
(nM) of about 100 or less. In another embodiment, the Heterocyclic-Substituted
Piperidinc
Compounds will have a lc GTP EC50 (nM) of about 50 or less. In another
embodiment, the
Heterocyclic-Substituted Piperidine Compounds will have a x GTP EC50 (nM) of
about 25 or
less. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
will have a
GTP EC50 (nM) of about 10 or less.
GTP Emax (%) is the maximal effect elicited by a compound relative to the
effect
elicited by U69,593. Typically, the Heterocyclic-Substituted Piperidine
Compounds of the
invention have a ic GTP Emax (%) of greater than about 15%. In one embodiment,
the
Heterocyclic-Substituted Piperidine Compounds have a K GTP Emax (%) of greater
than about
30%. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
have a x
GTP Emax (%) of greater than about 40%. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds have a K GTP Emax (%) of greater than about
45%. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds have a
lc GTP Emax
(%) of greater than about 55%. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds have a x GTP Emax (%) of greater than about 75%. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds have a ic GTP
Emax (%) of
greater than about 90%. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds have a lc GTP Emax (%) of about 100% or greater.
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5.38 Example 38: In vitro 8-opioid Receptor Binding Assays
d-opioid Receptor Binding Assay Procedures: Radioligand dose-displacement
assays used 0.2 nM [3H]-Naltrindole (NEN; 33.0 Ci/mmole) with 10-20 i.tg
membrane protein
(recombinant delta opioid receptor expressend in CHO-Kl cells; Perkin Elmer)
in a final
volume of 500A binding buffer (5mM MgC12, 5% DMSO, 50mM Trizma base, pH 7.4).
Non-specific binding was determined in the presence of 25 tm M unlabeled
naloxone. All
reactions were performed in 96-deep well polypropylene plates for 1 h at a
temperature of
about 25 C. Binding reactions were determined by rapid filtration onto 96-well
Unifilter GF/C
filter plates (Packard) presoaked in 0.5% polyethylenimine (Sigma). Harvesting
was
performed using a 96-well tissue harvester (Packard) followed by five
filtration washes with
500RL ice-cold binding buffer. Filter plates were subsequently dried at 50 C
for 1-2 hours.
Fifty P.,/well scintillation cocktail (MicroScint20, Packard) was added and
plates were
counted in a Packard Top-Count for 1 min/well.
8-opiold Receptor Binding Data: Typically, the Heterocyclic-Substituted
Piperidine
Compounds will have a Ki (nM) of about 10,000 or less for ö receptors. In one
embodiment,
the Heterocyclic-Substituted Piperidine Compounds will have a Ki (nM) of about
9000 or less.
In another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a Ki
(nM) of about 7500 or less. In another embodiment, the Heterocyclic-
Substituted Piperidine
Compounds will have a Ki (nM) of about 6500 or less. In another embodiment,
the
Heterocyclic-Substituted Piperidine Compounds will have a Ki (nM) of about
5000 or less. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a Ki (nM)
of about 3000 or less. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have a Ki (nM) of about 2500 or less. In another embodiment,
the
Heterocyclic-Substituted Piperidine Compounds will have a Ki (nM) of about
1000 or less. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a Ki (nM)
of about 500 or less. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have a Ki (nM) of about 350 or less. In another embodiment, the
Heterocyclic-Substituted Piperidine Compounds will have a Ki (nM) of about 250
or less. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a Ki (nM)
of about 100 or less. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have a Ki (nM) of about 10 or less.
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5.39 Example 39: In vitro 8-Opioid Receptor Functional Assays
6-Opioid Receptor Functional Assay Procedures: Functional [35S]GTPyS binding
assays were conducted as follows. Delta opioid receptor membrane solution was
prepared by
sequentially adding final concentrations of 0.026 p,g/ 1., delta membrane
protein (Perkin
Elmer), 10 p.g/mL saponin, 3 M GDP and 0.20 nM [35S]GTPyS to binding buffer
(100mM
NaC1, 10mM MgC12, 20mM HEPES, pH 7.4) on ice. The prepared membrane solution
(1904/well) was transferred to 96-shallow well polypropylene plates containing
10 1, of 20x
concentrated stock solutions of agonist prepared in DMSO. Plates were
incubated for 30 min
at a temperature of about 25 C with shaking. Reactions were terminated by
rapid filtration
onto 96-well Unifilter GF/B filter plates (Packard) using a 96-well tissue
harvester (Packard)
and followed by three filtration washes with 200 L ice-cold binding buffer
(10mM NaH2PO4,
10mM Na2HPO4, pH 7.4). Filter plates were subsequently dried at 50 C for 1-2
hours. Fifty
L/well scintillation cocktail (MicroScint20, Packard) was added and plates
were counted in a
Packard Top-count for 1 min/well.
8-Opioid Receptor Functional Data: 6 GTP EC50 is the concentration of a
compound
providing 50% of the maximal response for the compound at a 6 receptor.
Heterocyclic-
Substituted Piperidine Compounds typically will have a 6 GTP ECK, (nM) of
about 10,000 or
less to stimulate 6 opioid receptor function. In one embodiment, the
Heterocyclic-Substituted
Piperidine Compounds will have a 6 GTP EC50 (nM) of about 3500 or less. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a 6
GTP EC50
(nM) of about 1000 or less. In another embodiment, the Heterocyclic-
Substituted Piperidine
Compounds will have a 6 GTP EC50 (nM) of about 500 or less. In another
embodiment, the
Heterocyclic-Substituted Piperidine Compounds will have a 6 GTP EC50 (nM) of
about 100 or
less. In another embodiment, the Heterocyclic-Substituted Piperidine Compounds
will have a
6 GTP EC50 (nM) of about 90 or less. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a 6 GTP EC50 (nM) of about 50 or less. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a 6
GTP EC50
(nM) of about 25 or less. In another embodiment, the Heterocyclic-Substituted
Piperidine
Compounds will have a 6 GTP EC50 (nM) of about 10 or less.
6 GTP Emax (%) is the maximal effect elicited by a compound relative to the
effect
elicited by met-enkephalin. Typically, the Heterocyclic-Substituted Piperidine
Compounds of
the invention will have a 6 GTP Emax (%) of greater than about 10%. In one
embodiment, the
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Heterocyclic-Substituted Piperidine Compounds will have a 6 GTP Emax (%) of
greater than
about 30%. In another embodiment, the Heterocyclic-Substituted Piperidine
Compounds will
have a 6 GTP Emax (/0) of greater than about 50%. In another embodiment, the
Heterocyclic-
Substituted Piperidine Compounds will have a 6 GTP Emax (%) of greater than
about 75%. In
another embodiment, the Heterocyclic-Substituted Piperidine Compounds will
have a 6 GTP
Emax (%) of greater than about 90%. In another embodiment, the Heterocyclic-
Substituted
Piperidine Compounds will have a 6 GTP Emax (%) of about 100% or greater. In
another
embodiment, the Heterocyclic-Substituted Piperidine Compounds will have a 6
GTP Emax (%)
of about 110% or greater.
5.40 Example 40: Efficacy of Receptor Binding and Activity Response
The following Tables provide results on the efficacy of binding and activity
response of
several Heterocyclic-Substituted Piperidine Compounds to the ORL-1 receptor
and, for certain
Heterocyclic-Substituted Piperidine Compounds, the 1,i opioid receptor, the -
lc opioid receptor
and/or the 6 opioid receptor.
In Table 1, binding efficacy to the ORL-1 receptor was determined by the
procedure in
Example 32. Binding efficacy to the p opioid receptor was determined by the
procedure in
Example 34. Binding efficacy to the K opioid receptor was determined by the
procedure in
Example 36. Binding efficacy to the 6 opioid receptor was determined by the
procedure in
Example 38.
In Table 2, activity response to the ORL-1 receptor was determined by the
procedure in
Example 33. Activity response to the p opioid receptor was determined by the
procedure in
Example 35. Activity response to the x opioid receptor was determined by the
procedure in
Example 37. Activity response to the 6 opioid receptor can be determined by
the procedure in
Example 39.
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Table 1: Efficacy of Receptor Binding of Heterocyclic-Substituted
Piperidine Compounds
1(1 [Average Std Deviation] (nM)
Ref. Compound
No. ORL-1 Opioid Receptor
JI IC A
N = 0
41 I
N 0
6 65 2200 167 2900
26 300 6 235
N 0
41 I
N 0
18
63.2
2.5
N = 0
I
N 0
17 11.5 2500
1.0 525
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1(1 [Average Std Deviation] (nM)
Ref. Compound
No. ORL-1 Opioid Receptor
11 K A
H
N 0
41 I
N 0
a22.8 825 880 9600
9 N
u rs1:1,,,_, +8.5 +30 +80 +2600
ii3k, LA .3
H
N 0
1. I
N 0
12 a 8.9 1300 439 4050
N +0.2 +2200 +6 +400
iv
SO
NH2
rc,
ak N,f0
ilkiP N'..0
24
a 453
3300 6950 5450
+32
1 715 1 1350 + 1400
14010N
ill
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Ki [Average Std Deviation] (nM)
Ref. Compound
No. ORL-1 Opioid Receptor
A
0
HN
A
411 N 0
35.5 13,700 355 16,200
+7.5 +3800 30 3250
0
F HN
229
12
0
FINA
F 411 N
16
32.6
3800
1.6
1150
0 CH3
HN
CH3
7
620
6200
+56
1300
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Ki [Average Std Deviation] (nM)
Ref. Compound
No. ORL-1 Opioid Receptor
g K A
0
HN A
4 N 0
a
N 610
+ 65 2950
+325
H3c CH3
0 CH3
HN-y\
* N 0 CH3
11 a
N 1550
5000
+285
+ 375
H3C CH3
H
I /0
N
H3e W N
0 60
85 39930
N
a
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PCT/US2008/051096
Ki [Average Std Deviation] (nM)
Ref. Compound
No. ORL-1 Opioid Receptor
11K A
r.cH3
Ny0
43
291
>106
20
Nx0
kN 0
44
52
9540 4232
+2122 739 65660
+8
HI 0
No
29 1526
219
N 0
66 89 17385 1317
54760
22 +2235 148
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Ki [Average Std Deviation] (nM)
Ref. Compound
No.
ORL-1 Opioid Receptor
11 K A
H
I
IP
oal 61
584 559
47 28200 52100
N +104 +75
a
H
I
N
0 I0
N 0
4 1762
78
0
N +226
O
F,
I
N 0
0 I
N 0 0
1965
79
+750
a
Iii
. Nx0
HI"' 4 529
56 20800
11tr. ,41 0. 1 127
U
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Ki [Average Std Deviation] (nM)
Ref. Compound
No.
ORL-1 Opioid Receptor
11 K A
H
I
0 Nx0
N 0
HW 13 769 170
57 21900
Hr......L,NH 4 6 21
H
% 0
OCNN
a 0
51
67 12380 72400
N 6
a
1
rig6i N
OH IF
N
0 (50
86 >106
N
o
HI
* Ni0
iv 5.6 1380 119
60 23400
H NH/ 0.4 515 4
0
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Ki [Average Std Deviation] (nM)
Ref. Compound
No. ORL-1 Opioid Receptor
II K A
H
I
NI
N 0
61
1-1=A W =' 56 15750 682
22800
H H 6 1550 106
N
0
46, F1N1
IV
Hi/. o 173 11930
58
u 01-1
.. N +49 +2620
a
H
1 0
H3C..0 N NI
U...,
N
a o 16500
81
N 1550
0
H
1 0
H30scre:
83 (--5 6010
N 686
0
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KJ [Average Std Deviation] (nM)
Ref. Compound
No. ORL-1 Opioid Receptor
11 K A
H
% 0
4111 N
IP
F No
87
a 68
11670
NO +6
1200
d0-CH a
H
1
N 0
I
N 0
1777
80 i 50
aN so H
a
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Table 2: Activity Response of Heterocyclic-Substituted
Piperidine Compounds
GTP EC50 (nM) GTP Emax (%)
Ref.
Compound Opioid Receptor Opioid Receptor
No. ORL-1 ORL-1
N = 0
*
N 0
6 240 590 87.3 13.7
115 180 5.3 0.9
N 0
1011 I
N 0
18
183
60.3
LNJ +14.5
4.6
N = 0
00 I
N 0
17 11.5 2500 74
1.0 525 16
N = 0
= I
N 0
9
208 3924 4050 68 28.5 22.5
8.6 + 13 670 1.0 2.6 2.6
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_
GTP EC50 (nM) GTP Emax (%)
Ref.
Compound Opioid Receptor Opioid Receptor
No. OFtL-1 ORL-1
ft K g K
H
N 0
4 I
N 0
12 a 31.9 1640 7000 132 66.0 57.7
N 3.5 440 345 8.5 + 0.7
4.3
IP
0101
NH2
(Ct
iiN.õfe0
N"µO
24
a 5250
152
465
18
N
I.
0
HN
* Ao
a166
1290 55.8
220 3.8 114
N 34 8.7
a
0
F
HN
4 1
a
20 770
43 39.3
0.9
N
a
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GTP EC50 (nM) GTP Emax (Y0)
Ref.
Compound Opioid Receptor Opioid Receptor
No. ORL-1 ORL-1
f t
0
HN
-N%
153 55.0
16 22 4.2
0 CH3
HN--y\
N CH3
7 1300 41.3
175 9.8
0
FINA
411 11 0
1400
45.3
125
+ 1.8
u
vi 13
rCH3
õI Ny0
43
450
+47 27
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GTP EC50 (nM) GTP Emax CVO
Ref.
Compound Opioid Receptor Opioid Receptor
No. ORL-1 ORL-1
11
ripN
Nx0
44
141
+27 46
NLO
66
202
37 38
XXX
47 7800 13992
1600 2370 90 25
HI
=Nr
56 44
H .4/1-1
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GTP EC50 (nM) GTP Emax (%)
Ref.
Compound Opioid Receptor Opioid Receptor
No. ORL-1 ORL-1
11K 11
N....õ0.0
ti 0
H 96 4800
57 53 28
23 700
H
k 0
Nc..Lx.
67
574
39 40
CNJ o
Iii=Nr
Hi" 0 36 460
60 62 17
19 +7()
HI
N
N 0
HwA 830 6460
61
125
H H 500 82 22
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GTP EC50 (nM) GTP Emax (%)
Ref.
Compound Opioid Receptor Opioid Receptor
No. ORL-1 ORL-1
11.1
SI
Hh. 0
168
58
+12 22
n
FXX
1550
87 135
N o 140
Co-cH,
5.41 Example 41: In Vivo Assays for Prevention or Treatment of Pain
Test Animals: Each experiment uses rats weighing between 200-260 g at the
start of
the experiment. The rats are group-housed and have free access to food and
water at all times,
except prior to oral administration of a Heterocyclic-Substituted Piperidine
Compound when
food is removed for 16 hours before dosing. A control group acts as a
comparison to rats
treated with a Heterocyclic-Substituted Piperidine Compound. The control group
is
administered the carrier for the Heterocyclic-Substituted Piperidine Compound.
The volume
of carrier administered to the control group is the same as the volume of
carrier and
Heterocyclic-Substituted Piperidine Compound administered to the test group.
Acute Pain: To assess the actions of a Heterocyclic-Substituted Piperidine
Compound
for the treatment or prevention of acute pain, the rat tail flick test can be
used. Rats are gently
restrained by hand and the tail exposed to a focused beam of radiant heat at a
point 5 cm from
the tip using a tail flick unit (Model 7360, commercially available from Ugo
Basile of Italy).
Tail flick latencies are defined as the interval between the onset of the
thermal stimulus and the
flick of the tail. Animals not responding within 20 seconds are removed from
the tail flick unit
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and assigned a withdrawal latency of 20 seconds. Tail flick latencies are
measured
immediately before (pre-treatment) and 1, 3, and 5 hours following
administration of a
Heterocyclic-Substituted Piperidine Compound. Data are expressed as tail flick
latency(s) and
the percentage of the maximal possible effect (% MPE), i.e., 20 seconds, is
calculated as
follows:
[ (post administration latency) - (pre-administration latency) ]
% MPE ¨ ____________________________________________________ x 100
(20 s pre-administration latency)
The rat tail flick test is described in F.E. D'Amour etal., "A Method for
Determining
Loss of Pain Sensation," J. Phartnacol. Exp. Ther. 72:74-79 (1941).
Acute pain can also be assessed by measuring the animal's response to noxious
mechanical stimuli by determining the paw withdrawal threshold ("PWT"), as
described
below.
Inflammatory Pain: To assess the actions of a Heterocyclic-Substituted
Piperidine
Compound for the treatment or prevention of inflammatory pain, the Freund's
complete
adjuvant ("FCA") model of inflammatory pain is used. FCA-induced inflammation
of the rat
hind paw is associated with the development of persistent inflammatory
mechanical
hyperalgesia and provides reliable prediction of the anti-hyperalgesic action
of clinically useful
analgesic drugs (L. Bartho etal., "Involvement of Capsaicin-sensitive Neurones
in
Hyperalgesia and Enhanced Opioid Antinociception in Inflammation," Naunyn-
Schtniedeberg's Archives of Pharmacol. 342:666-670 (1990)). The left hind paw
of each
animal is administered a 50 LL intraplantar injection of 50% FCA. 24 hour post
injection, the
animal is assessed for response to noxious mechanical stimuli by determining
the PWT, as
described below. Rats are then administered a single injection of 1, 3, 10 or
30mg/kg of either
a Heterocyclic-Substituted Piperidine Compound; 30mg/kg of a control selected
from
Celebrex, indomethacin or naproxen; or carrier. Responses to noxious
mechanical stimuli are
then determined 1, 3, 5 and 24 hours post administration. Percentage reversal
of hyperalgesia
for each animal is defined as:
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[ (post administration PWT) - (pre-administration PWT) ]
% Reversal = _____________________________________________ x 100
[ (baseline PWT) - (pre-administration PWT) ]
Neuronathic Pain: To assess the actions of a Heterocyclic-Substituted
Piperidine
Compound for the treatment or prevention of neuropathic pain, either the
Seltzer model or the
Chung model can be used.
In the Seltzer model, the partial sciatic nerve ligation model of neuropathic
pain is used
to produce neuropathic hyperalgesia in rats (Z. Seltzer et al., "A Novel
Behavioral Model of
Neuropathic Pain Disorders Produced in Rats by Partial Sciatic Nerve Injury,"
Pain 43:205-
218 (1990)). Partial ligation of the left sciatic nerve is performed under
isoflurane/02
inhalation anaesthesia. Following induction of anesthesia, the left thigh of
the rat is shaved
and the sciatic nerve exposed at high thigh level through a small incision and
is carefully
cleared of surrounding connective tissues at a site near the trocanther just
distal to the point at
which the posterior biceps semitendinosus nerve branches off of the common
sciatic nerve. A
7-0 silk suture is inserted into the nerve with a 3/8 curved, reversed-cutting
mini-needle and
tightly ligated so that the dorsal 1/3 to '/2 of the nerve thickness is held
within the ligature. The
wound is closed with a single muscle suture (4-0 nylon (Vicryl)) and vetbond
tissue glue.
Following surgery, the wound area is dusted with antibiotic powder. Sham-
treated rats
undergo an identical surgical procedure except that the sciatic nerve is not
manipulated.
Following surgery, animals are weighed and placed on a warm pad until they
recover from
anesthesia. Animals are then returned to their home cages until behavioral
testing begins. The
animal is assessed for response to noxious mechanical stimuli by determining
PWT, as
described below, prior to surgery (baseline), then immediately prior to and 1,
3, and 5 hours
after drug administration for rear paw of the animal. Percentage reversal of
neuropathic
hyperalgesia is defined as:
[ (post administration PWT) - (pre-administration PWT)]
% Reversal = _____________________________________ x 100
[ (baseline PWT) - (pre-administration PWT) ]
In the Chung model, the spinal nerve ligation model of neuropathic pain is
used to produce
mechanical hyperalgesia, thermal hyperalgesia and tactile allodynia in rats.
Surgery is
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performed under isoflurane/02 inhalation anaesthesia. Following induction of
anaesthesia, a 3
cm incision is made and the left paraspinal muscles are separated from the
spinous process at
the L4 - S2 levels. The L6 transverse process is carefully removed with a pair
of small rongeurs
to identify visually the L4 - L6 spinal nerves. The left L5 (or L5 and L6)
spinal nerve(s) is
isolated and tightly ligated with silk thread. A complete hemostasis is
confirmed and the
wound is sutured using non-absorbable sutures, such as nylon sutures or
stainless steel staples.
Sham-treated rats undergo an identical surgical procedure except that the
spinal nerve(s) is not
manipulated. Following surgery animals are weighed, administered a
subcutaneous (s.c.)
injection of saline or ringers lactate, the wound area is dusted with
antibiotic powder and they
are kept on a warm pad until they recover from the anesthesia. Animals are
then returned to
their home cages until behavioral testing begins. The animals are assessed for
response to
noxious mechanical stimuli by determining PWT, as described below, prior to
surgery
(baseline), then immediately prior to and 1, 3, and 5 hours after being
administered a
Heterocyclic-Substituted Piperidine Compound for the left rear paw of the
animal. The animal
can also be assessed for response to noxious thermal stimuli or for tactile
allodynia, as
described below. The Chung model for neuropathic pain is described in S.H.
Kim, "An
Experimental Model for Peripheral Neuropathy Produced by Segmental Spinal
Nerve Ligation
in the Rat," Pain 50(3):355-363 (1992).
Response to Mechanical Stimuli as an Assessment of Mechanical Hvneralgesia:
The paw pressure assay can be used to assess mechanical hyperalgesia. For this
assay, hind
paw withdrawal thresholds (PWT) to a noxious mechanical stimulus are
determined using an
analgesymeter (Model 7200, commercially available from Ugo Basile of Italy) as
described in
C. Stein, "Unilateral Inflammation of the Hindpaw in Rats as a Model of
Prolonged Noxious
Stimulation: Alterations in Behavior and Nociceptive Thresholds," Pharnzacol.
Biochenz. and
Behavior 31:451-455 (1988). The maximum weight that can be applied to the hind
paw is set
at 250 g and the end point is taken as complete withdrawal of the paw. PWT is
determined
once for each rat at each time point and either only the affected
(ipsilateral) paw is tested, or
both the ipsilateral and contralateral (non-injured) paw are tested.
Response to Thermal Stimuli as an Assessment of Thermal Hyperal2esia: The
plantar test can be used to assess thermal hyperalgesia. For this test, hind
paw withdrawal
latencies to a noxious thermal stimulus are determined using a plantar test
apparatus
(commercially available from Ugo Basile of Italy) following the technique
described by K.
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Hargreaves et al., "A New and Sensitive Method for Measuring Thermal
Nociception in
Cutaneous Hyperalgesia," Pain 32(1):77-88 (1988). The maximum exposure time is
set at 32
seconds to avoid tissue damage and any directed paw withdrawal from the heat
source is taken
as the end point. Three latencies are determined at each time point and
averaged. Either only
the affected (ipsilateral) paw is tested, or both the ipsilateral and
contralateral (non-injured)
paw are tested.
Assessment of Tactile Allodynia: To assess tactile allodynia, rats are placed
in clear,
plexiglass compartments with a wire mesh floor and allowed to habituate for a
period of at
least 15 minutes. After habituation, a series of von Frey monofilaments are
presented to the
plantar surface of the left (operated) foot of each rat. The series of von
Frey monofilaments
consists of six monofilaments of increasing diameter, with the smallest
diameter fiber
presented first. Five trials are conducted with each filament with each trial
separated by
approximately 2 minutes. Each presentation lasts for a period of 4-8 seconds
or until a
nociceptive withdrawal behavior is observed. Flinching, paw withdrawal or
licking of the paw
are considered nociceptive behavioral responses.
The invention is not to be limited in scope by the specific embodiments
disclosed in the
examples that are intended as illustrations of a few aspects of the invention
and any
embodiments that are functionally equivalent are within the scope of this
invention. Indeed,
various modifications of the invention in addition to those shown and
described herein will
become apparent to those skilled in the art and are intended to fall within
the scope of the
appended claims.
A number of references have been cited, the entire disclosures of which are
incorporated herein by reference for all purposes.
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